Vegetarian Stuffed Peppers (with Mushrooms and Feta) (2025)

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These Vegetarian Stuffed Peppers have loads of flavor from mushrooms and Feta and you can make them with brown rice or cauliflower rice! And the tasty stuffed peppers are also gluten-free and the version with cauliflower rice has only about 12 net carbs per pepper.

PIN Vegetarian Stuffed Peppers to try them later!

Vegetarian Stuffed Peppers (with Mushrooms and Feta) (1)

For my Friday Favorites pick this week I’m featuring these delicious Vegetarian Stuffed Peppers that came about a few years ago when a reader asked on the Kalyn’s Kitchen Facebook page whether I had a stuffed pepper recipe that was vegetarian. That inquiry started the idea of stuffed peppers without meat swirling around in my mind, and I came up with these Vegetarian Stuffed Peppers.

Originally I made a stuffed pepper recipe with cooked brown rice, but since then I’ve become a fan of using cauliflower rice for stuffed peppers, and these peppers can be stuffed with brown rice or cauliflower rice. Whichever you prefer, it will be combined with chopped peppers, chopped mushrooms, and crumbled Feta for a meatless stuffed pepper recipe that’s filled with amazing flavors.

We loved everything about this recipe, and if you can’t eat six peppers at once, take some of them out of the oven a little sooner and refrigerate or freeze for a quick dinner to be reheated later.

What ingredients do you need for this recipe?

(This is only a list of ingredients; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe.)

  • bell peppers
  • cooked brown rice, or use 10 oz. frozen cauliflower rice for low-carb version
  • Olive Oil (affiliate link)
  • onion
  • mushrooms
  • Greek Seasoning (affiliate link)
  • fresh ground black pepper to taste
  • crumbled Feta cheese

Should you pre-cook the peppers for Vegetarian Stuffed Peppers?

I’ve been making stuffed peppers and low-carb stuffed peppers for many years, and I discovered a long time ago that I prefer stuffing the peppers raw so the pepper part is not too soft when they’re done.

What color of peppers can you use?

I love to use brightly-colored red, orange, and yellow peppers but you can make stuffed peppers with any color you have. And if you were making this during the holidays it would be fun to make the stuffed peppers red and green.

How can you make Vegetarian Stuffed Peppers lower in carbs?

The nutritional information in this recipe is for the original stuffed peppers made with brown rice, and each pepper has 24 net carbs. But if you replace the cauliflower rice with a 10 oz. package of frozen cauliflower rice, each pepper will be 12.1 net carbs. Cook the cauliflower rice just slightly less time than the package indicates, since it will cook more inside the peppers.

Want more low-carb stuffed peppers?

Check out Low-Carb and Keto Stuffed Peppers for lots more tasty ideas for stuffed peppers that are low in carbs.

Vegetarian Stuffed Peppers (with Mushrooms and Feta) (2)

How to make Vegetarian Stuffed Peppers (with Mushrooms and Feta):

(This is only a summary of the steps for the recipe; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe.)

  1. I cooked the brown rice in my much beloved Zojirushi Rice Cooker (affiliate link), but if you don’t have a rice cooker just follow package directions to get 2 cups of cooked brown rice. (For cauliflower rice version, follow package directions but cook the cauliflower rice for slightly less time.)
  2. You need some chopped pepper for the filling, so don’t feel bad about slicing off a bit of the bottom (to make the peppers stand up and slicing off the top.; (I bought a six-pack of multi-colored peppers from Costco.)
  3. Clean out the seeds and inner membranes of the peppers and stand them up in a baking dish that you’ve sprayed with non-stick spray.
  4. Chop up 12 ounces of mushrooms. (I used brown Crimini mushrooms, which I think are especially flavorful.)
  5. Also finely chop the pepper tops and bottoms and one small onion.
  6. Saute the onions and peppers for a few minutes and remove to a plate.
  7. Then saute the chopped mushrooms until they’re starting to brown (and all liquid has evaporated.)
  8. Add the onions and peppers to the mushrooms, add the Greek Seasoning and black pepper to taste and cook about a minute more.
  9. Turn off heat and mix in the cooked brown rice (or cauliflower rice) and 1 cup of crumbled Feta. (If you’re a strict vegetarian, look for a Feta cheese with vegetable rennet.)
  10. Stuff the filling into the peppers, pressing it down with a spoon. (Remove one pepper at a time and hold it over the frying pan to stuff to keep the baking dish clean!)
  11. Cover the baking dish with foil and cook 30 minutes in a pre-heated oven at 375F/190C. (Cook about 25 minutes for cauliflower rice)
  12. Then put about 2 tsp. crumbled Feta on the top of each pepper, pressing it down so it will stay. (If it’s important to you for this to be strictly vegetarian, choose a version of Feta without rennet.)
  13. Bake about 1o – 20 minutes more uncovered, until the Feta is melted and starting to slightly brown and the peppers are done to your liking.
  14. Serve hot and enjoy!

Vegetarian Stuffed Peppers (with Mushrooms and Feta) (3)

More Tasty Meatless Dinners:

  • Pesto Spaghetti Squash
  • Tomato Zucchini Pie
  • Slow Cooker Lentils
  • Peanut Butter Tofu with Sriracha
  • Swiss Chard Casserole

Weekend Food Prep:

This recipe has been added to a category called Weekend Food Prep where you’ll find recipes you can prep or cook on the weekend and eat during the week!

Vegetarian Stuffed Peppers (with Mushrooms and Feta) (4)

Yield: 6 servings

Vegetarian Stuffed Peppers (with Mushrooms and Feta)

Prep Time30 minutes

Cook Time50 minutes

Total Time1 hour 20 minutes

You won’t miss the meat in these Vegetarian Stuffed Peppers with mushrooms and Feta, and you can make these tasty stuffed peppers with brown rice or cauliflower rice!

Ingredients

  • 6 fresh bell peppers, any color (bottoms and tops sliced off)
  • 2 cups cooked brown rice (or 10 oz. package frozen cauliflower rice)
  • 4 tsp. olive oil
  • 1 onion, finely chopped
  • 12 oz. mushrooms, chopped small (see notes)
  • 2 tsp. Greek Seasoning (or a little more)
  • fresh ground black pepper to taste
  • 1 1/4 cups crumbled Feta cheese

Instructions

  1. Follow package directions to cook 2 cups brown rice. I useBen’s Original Brown Ricewhich I cook in myZojirushi Rice Cooker (affiliate link). For frozen cauliflower rice, follow package directions but cook the cauliflower rice for slightly less time.
  2. Preheat oven to 375F/190C. Choose the smallest possible baking dish that will hold all six peppers standing up, and spray with nonstick cooking spray or olive oil.
  3. Cut off the bottoms of the peppers, cutting off as little as possible to make a flat bottom so the peppers will stand up. (Don’t worry if it leaves a small hole.)
  4. Slice off the tops of the peppers, cutting off just enough to cut away the stem part. Remove any seeds and membranes from inside the peppers and stand them up in baking dish.
  5. Finely chop the pepper tops and bottoms that you sliced off, as well as the onion.
  6. Wash mushrooms if needed, and chop into pieces just slightly larger than you chopped the peppers and onions.
  7. Heat 2 tsp. of oil in a large non-stick frying pan, add onions and peppers, and saute over medium-high heat until they’re barely starting to soften, about 4 minutes.
  8. Remove to a plate, add 1 tsp. more oil to pan, add chopped mushrooms, and cook until the mushrooms have released their liquid, the liquid has evaporated, and mushrooms are barely starting to brown, about 6 minutes.
  9. Put the sauteed onions and peppers back into the pan with the mushrooms, add the Greek Seasoning and black pepper to taste, and cook 1 minute more. Stir in the cooked rice (or califlower rice) and add 1 cup of the crumbled Feta and gently combine.
  10. One at a time, hold each pepper over the frying pan and fill with the stuffing, pressing it down as much as you can so it’s tightly packed. (We didn’t have any extra stuffing, but if you do, just cook it along with the peppers either in the same dish or in a small casserole dish.)
  11. When all peppers are stuffed, cover the baking dish with foil (or a lid if it has one) and cook 30 minutes.
  12. After 30 minutes, remove dish from the oven and remove the foil. Put 2 tsp. crumbled Feta on the top of each pepper, pressing it down a little if needed to get it to stick.
  13. Bake 10 - 20 minutes more, until the Feta is starting to melt and lightly brown and peppers are done to your liking. Serve hot and enjoy!

Notes

Nutritional information is for the peppers made with brown rice. Stuffed peppers with cauliflower rice will have about 12.1 net carbs per pepper.

I used brown Cremini mushrooms, also called Baby Bellas.

If you won’t be eating all six peppers at once, take some out of the oven a little sooner and freeze in an air-tight container to be reheated for a quick dinner later. For best results, let frozen peppers thaw in the fridge and then reheat in the microwave or in the oven in a small baking dish covered with foil.

Recipe created by Kalyn.

Nutrition Information

Yield

6

Serving Size

1

Amount Per ServingCalories 238Total Fat 11gSaturated Fat 5gUnsaturated Fat 5gCholesterol 28mgSodium 798mgCarbohydrates 28gFiber 4gSugar 6gProtein 9g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.

Did you make this recipe?

Did you make this recipe? Please leave a star rating (under the PRINT button in the recipe) or share a photo of your results on Instagram! THANKS!

Vegetarian Stuffed Peppers (with Mushrooms and Feta) (5)

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Peppers, onions, mushrooms, brown rice, and Feta cheese are all good for the original South Beach Diet Phase two or three. Vegetarian Stuffed Peppers with brown rice would be too high in carbs for low-carb diets but the version with cauliflower rice would be a good option and also suitable for Phase one for the South Beach Diet. If you make the version with cauliflower rice the peppers have only 12.1 net carbs per pepper.

Find More Recipes Like This One:
Use Oven Dinners to find more recipes like this one.Use the Diet Type Index to find more recipes suitable for a specific eating plan. You might also like to follow Kalyn’s Kitchen on Pinterest, on Facebook, on Instagram,on TikTok, or on YouTube to see all the good recipes I’m sharing there.

Historical Notes for this Recipe:
This recipe was posted in 2013. It was updated with the lower-carb option of using cauliflower rice in 2021 and last updated with more information and featured for Friday Favorites in 2024.

Vegetarian Stuffed Peppers (with Mushrooms and Feta) (6)

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Vegetarian Stuffed Peppers (with Mushrooms and Feta) (2025)

FAQs

Should I cook bell peppers or mushrooms first? ›

Heat the olive oil or butter in a large frying pan over low-medium heat. Add onion and pepper pieces and saute until the onions are barely beginning to soften and become translucent. Increase the heat to medium-high and add the mushrooms. Cook, stirring frequently.

Is it better to boil peppers before stuffing? ›

Nope! Some recipes will have you boil or roast the peppers before stuffing them, but that's not necessary here. They bake long enough, stuffed, that the peppers get cooked through. Pouring a small amount of water in the bottom of the baking dish and wrapping it tightly in foil creates steam to help them cook!

Why are my stuffed peppers soggy? ›

First and foremost, it's essential to precook your peppers. Bell peppers contain more than 90% water, much of which is released during the cooking process. If you cook your stuffed peppers in one fell swoop, that moisture will release and end up in the final dish.

What is a fancy name for stuffed peppers? ›

The chile relleno, literally "stuffed pepper", consists of a roasted and peeled/skinned green pasilla or poblano pepper stuffed with cheese (traditionally queso fresco) and, occasionally, minced meat, covered in an egg batter, and fried.

Do you sauté mushrooms with lid on or off? ›

Add cut mushrooms and salt and increase heat to medium-high. Cover and cook, stirring occasionally, until mushrooms have released their liquid, 8 to 10 minutes. Remove lid, add remaining 2 tablespoons (25g) butter, and cook, stirring occasionally, until mushrooms are deep golden brown and tender, about 15 minutes.

Why do stuffed peppers take so long to cook? ›

If you're stuffing a whole pepper, it takes awhile to cook because the filling needs to reach a safe temperature. Out of all the stuffed peppers, this one takes the longest to cook because of its size.

What goes well with stuffed peppers? ›

Roasted vegetables are thea great option to serve with stuffed peppers. Choose from options such as a spicy hot honey carrots to light and refreshing lemon parmesean zucchini for the perfect stuffed pepper side dish.

What temperature do you bake stuffed peppers? ›

Steps
  1. Heat oven to 350°F.
  2. Cut thin slice from stem end of each bell pepper to remove top of pepper. ...
  3. In 10-inch skillet, cook beef and onion over medium heat 8 to 10 minutes, stirring occasionally, until beef is brown; drain. ...
  4. Stuff peppers with beef mixture. ...
  5. Cover tightly with foil.

How to keep stuffed peppers from falling apart? ›

Dear Cathy: Try to use a baking dish that the peppers fit snuggly into. If you don't have one, you can use ramekins or even a muffin tin so that they each have their individual place. Also, they seem to want to topple if you overfill them with the meat mixture.

What do Italians call peppers? ›

In Italy Peperoni are peppers.

What is the spice in peppers called? ›

The “hot” in hot peppers is due to capsaicin (C18h27nO3), a colorless, odorless oil-like compound found in the fruit of a plant that is a close relative of the tomato.

What do English people call peppers? ›

annuum and other varieties which look like a "capsicum" or bell but are fairly hot. In the United Kingdom, Ireland, and Canada, the heatless varieties are called "peppers", "sweet peppers" or "capsicums" (or "green peppers," "red peppers," etc.) while the hot ones are "chilli/chillies" (double L) or "chilli peppers".

Do you cook mushrooms first or last? ›

For the Best Mushrooms, Give Them a Good Sear

Cooking mushrooms concentrates their flavor and brings out notes of sweet earthiness from the Maillard reaction taking place. The best way to do this is to sear the mushrooms first in a dry pan.

What order to cook vegetables? ›

Cook the dense vegetables first as they will take longer to cook e.g. carrot, eggplant, broccoli stems. Add the less dense vegetables towards the end of cooking, e.g. cabbage, bok choy. Heat a little oil in a large non-stick pan or wok. Make sure the oil in the pan is very hot before adding the vegetables.

Do you cook mushrooms and peppers before putting on pizza? ›

In a large nonstick skillet, heat the oil over moderate heat. Add the bell peppers and saute for 5 minutes or until crisp-tender. Add the mushrooms, onion slices (if using), oregano and salt, and cook for 4 minutes or until the mushroom liquid has evaporated. Set aside.

Should you pepper before or after cooking? ›

If you want a slightly bitter, pungent, and contrasting crust, go ahead and season it beforehand, and maybe turn the heat down a little. If you want to taste pepper's more floral, citrusy, woody notes, grind it on after the steak is finished cooking. You can also do both, depending on how much you like pepper.

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