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High Protein Stuffed Peppers

Modified: Jun 12, 2025 by Lesley · Published: Jul 15, 2025 · This post may contain affiliate links · 4 Comments

Pinnable image with recipe title and an oven proof dish with 2 halves of stuffed red pepper topped with melted cheese and a garnish of sliced spring onion and shredded basil leaves.
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High Protein Stuffed Peppers are a great healthy meal option. The filling combines green lentils with a variety of vegetables and fresh herbs, adding some salami and cheese for extra layers of flavour.

An oven proof dish with 2 halves of stuffed red pepper topped with melted cheese and a garnish of sliced spring onion and shredded basil leaves.

There are lots of recipes for high protein stuffed peppers with ground beef. As much as I love these, I wanted to change things up a bit and go with a lower fat alternative, opting for lentils which are a great protein rich food, high in fiber and low in fat.

I've added a little salami to the filling which adds an extra layer of flavour. However, for vegetarian high protein stuffed peppers you can leave this out.

Table of Contents

Toggle
  • Why you'll love this recipe
  • Recipe ingredients
  • How to make high protein stuffed peppers
  • Recipe variations
  • Serving suggestions
  • Useful hints and tips
  • FAQs
  • Pin the recipe
  • Additional recipe suggestions
  • High Protein Stuffed Peppers
    • Equipment
    • Ingredients
    • Instructions

Why you'll love this recipe

  • A filling and nutritious meal filled with protein rich lentils.
  • Get ahead and assemble the peppers earlier in the day, then store in the fridge until you are ready to cook.
  • Feed a crowd as this recipe is easily doubled up.
  • Versatile recipe as the filling ingredients can be easily adapted to suit your tastes.

Recipe ingredients

Individual recipe ingredients for high protein stuffed peppers.
  • Peppers - you can use any colour of bell pepper as they'll all work in this recipe. I allow 1 whole pepper per person for dinner, or ½ a pepper for a lighter lunch option.
  • Lentils - for ease I use a can of green or brown lentils as they have a good bite. I find red lentils soften and break down too much.
  • Onion - I use spring onions (green onions) as they have a mild onion flavour that doesn't overpower the other flavours in the filling.
  • Courgette - I add some diced courgette (zucchini) to the mix.
  • Tomatoes - I use sweet cherry tomatoes for the filling, you could also use baby plum tomatoes.
  • Garlic - for the best flavour I use fresh garlic, although frozen garlic would work here too.
  • Basil - I like to shred fresh basil and stir that through the mix.
  • Salami - I like to add some small thin pieces of salami to the filling, use any variety of salami.
  • Seasoning - I seasoned the filling with dried oregano, sea salt and black pepper.
  • Cheese - I use extra mature cheddar cheese both in the filling and also to sprinkle over the top of the peppers during the cook.

How to make high protein stuffed peppers

Two pepper halves on a chopping board with a sharp knife set alongside.
A small oven proof dish filled with 2 halves of bell pepper.
  • Leaving the stalk of the pepper in tact, cut through the pepper from top to bottom. Gently remove the seeds and membrane without removing the stalk.
  • Place the pepper halves into the baking dish.

TOP TIP: The stalk helps hold the half pepper in shape, without it the pepper will soften when cooked and the filling will fall out.

A pink bowl filled with chopped vegetables, salami, grated cheese and dried herbs.
A pink bowl containing the lentil and vegetable mixture for stuffed peppers.
  • Place all the remaining ingredients, along with 75g of cheese, into a large mixing bowl and stir to combine.
Two oven safe dishes filled with 6 halves of stuffed red bell peppers.
An oven safe dish with half cooked pepper halves topped with grated cheddar cheese.
  • Place this lentil and vegetable mixture into the peppers, dividing the mixture equally and pressing down into the corners.
  • Cover the dish with kitchen foil and place into the hot oven for 25 minutes.
  • Remove the dish from the oven, remove and discard the foil. Scatter the remaining 125g of cheese over the top of the peppers and place the dish back into the oven for 25 minutes.
  • Remove from the oven and serve immediately, allowing 2 halves of pepper per person.

Recipe variations

  • Lentils - I've used canned green lentil, you could also use brown lentils. Or swap lentils for black beans, or even some crushed up cashew nuts.
  • Meat - I've used thin slices of salami, but you could also use chorizo, ham, cooked chicken leftover from the weekend's roast. Or cook up some minced meat like beef, lamb or turkey.
  • Cheese - swap cheddar for other strong cheese like Parmesan, Gruyere, feta or goats cheese.
  • Fresh herbs - swap basil for other fresh herbs, try parsley, coriander (cilantro) or thyme.
  • Seasoning - add any dried herbs or spices to the filling mixture, try smoked paprika, garlic powder, onion powder, Italian seasoning, Cajun spice.
  • Chilli - add some chilli heat to the filling with chilli powder or red chilli flakes.
An oven proof dish with 2 halves of stuffed red pepper topped with melted cheese and a garnish of sliced spring onion and shredded basil leaves.

Serving suggestions

For a healthy protein rich meal I serve ½ pepper per person for a light lunch, and 1 whole (2 halves) per person for dinner.

These peppers are packed with flavour and can be served on their own, or with a light side salad, like my Easy Lettice & Herb Salad, Easy Celeriac Remoulade, or Sprout Slaw with Apple & Radish.

Useful hints and tips

  1. Don't cut through off the stalk: you need to keep the stalk of the pepper intact, otherwise the pepper will fall apart when is cooks and softens.
  2. Cheese: when cooking stuffed peppers I like to use a strong cheese, like an extra mature or vintage cheddar, or Gruyere. Using a strong flavoured cheese means you need to use less cheese than you would if using a mild cheddar, so less saturated fat.
  3. Vegetarian: remove the salami and ensure you use a vegetarian hard cheese.
  4. Dairy free and vegan diners: remove the salami and swap the mature cheddar for a plant based hard style cheese, or use vegan feta cheese.
  5. Allergy advice: gluten free, egg free, soya free and nut free. For comprehensive and detailed allergy advice go to Allergy UK.
An oven proof dish with 2 halves of stuffed red pepper topped with melted cheese and a garnish of sliced spring onion and shredded basil leaves.

FAQs

Are bell peppers high in protein?

No, bell peppers are not high in protein, however when stuffed you can add some protein into the filling mixture. Try lentils, black beans, cooked minced meats, or even some crushed nuts like cashews.

Are stuffed peppers healthy for weight loss?

Yes, provided you watch what you are filling them with, stuffed peppers are great for weight loss. Go for a filling that mixes vegetables, fresh herbs and spices with some protein (which keeps you fuller longer).

Do peppers need to be cooked before stuffing?

No, I've never cooked peppers before stuffing them as I find it more difficult to stuff them once they start to soften.

What colour bell pepper is healthiest?

Red peppers are the healthiest as they've grown longer and are fully ripened, meaning they are higher in vitamins and antioxidants like vitamin C and beta-carotene than less ripe green peppers.

Pin the recipe

Pinnable image with recipe title and an oven proof dish with 2 halves of stuffed red pepper topped with melted cheese and a garnish of sliced spring onion and shredded basil leaves.

Additional recipe suggestions

If you like this recipe then try some of my other high protein recipes:

  • Tuna, Avocado & Quinoa Salad
  • Curried Scrambled Eggs
  • Easy Shakshuka Eggs
  • Savoury Parma Ham & Egg Muffins
  • Spinach Omelette
  • Chorizo Hash with Chickpeas

Looking for inspiration for feeding the family mid week, then take a look at my Ultimate Guide to Family Dinners, full of useful hints, tips and recipes.

An oven proof dish with 2 halves of stuffed red pepper topped with melted cheese and a garnish of sliced spring onion and shredded basil leaves.

High Protein Stuffed Peppers

High Protein Stuffed Peppers are a great healthy meal option. The filling combines green lentils with a variety of vegetables and fresh herbs, adding some salami and cheese for extra layers of flavour.
5 from 2 votes
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Prep Time: 10 minutes mins
Cook Time: 50 minutes mins
Total Time: 1 hour hr
Servings: 3
Calories: 497kcal
Author: Lesley Garden

Equipment

  • large mixing bowl
  • Large oven proof dish
  • chopping board
  • Kitchen knife
  • sieve
  • measuring spoons
  • Kitchen foil

Ingredients

  • 3 red bell peppers (cut in half through stalk, de-seeded)
  • 400 g can green lentils (drained and washed)
  • 2 spring onions (finely sliced)
  • ½ courgette (diced)
  • 10 cherry tomatoes (quartered)
  • 1 clove garlic (crushed)
  • 1 handful fresh basil (shredded)
  • 12 sliced salami (cut into smaller pieces)
  • 1 teaspoon dried oregano
  • 1 teaspoon sea salt
  • 1 teaspoon black pepper
  • 200 g extra mature cheddar cheese (divided)

Instructions

  • Leaving the stalk of the pepper in tact, cut through the pepper from top to bottom. Gently remove the seeds and membrane without removing the stalk. (See images in post above - the stalk helps hold the half pepper in shape).
  • Place the pepper halves into the baking dish.
  • Place all the remaining ingredients, along with 75g of cheese, into a large mixing bowl and stir to combine.
  • Place this lentil and vegetable mixture into the peppers, dividing the mixture equally and pressing down into the corners.
  • Cover the dish with kitchen foil and place into the hot oven for 25 minutes.
  • Remove the dish from the oven, remove and discard the foil. Scatter the remaining 75g of cheese over the top of the peppers and place the dish back into the oven for 25 minutes.
  • Remove from the oven and serve immediately, allowing 2 halves of pepper per person.
Nutrition Facts
High Protein Stuffed Peppers
Amount Per Serving
Calories 497 Calories from Fat 225
% Daily Value*
Fat 25g38%
Saturated Fat 13g81%
Polyunsaturated Fat 1g
Monounsaturated Fat 6g
Cholesterol 70mg23%
Sodium 1331mg58%
Potassium 1064mg30%
Carbohydrates 41g14%
Fiber 14g58%
Sugar 10g11%
Protein 31g62%
Vitamin A 4877IU98%
Vitamin C 175mg212%
Calcium 540mg54%
Iron 6mg33%
* Percent Daily Values are based on a 2000 calorie diet.

• Please note that the nutrition information provided above is approximate and meant as a guideline only •

Course : Main Course
Cuisine : British
Keyword : canned lentils, high protein
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Comments

  1. Chloe says

    August 05, 2025 at 11:06 pm

    5 stars
    The salami was such a great addition, I'd never thought about adding that to a stuffed pepper mix but it worked really well with the lentils!

    Reply
    • Lesley says

      August 13, 2025 at 9:44 am

      Thank you Chloe, I like adding the salami as it adds lots of flavour, without then having the peppers stuffed full with ground meat which I'm not so keen on.

      Reply
  2. Jen says

    July 16, 2025 at 2:01 pm

    5 stars
    These were so easy to make, I liked the taste of the salty salami with the vegetables and cheese. Will definitely make again.

    Reply
    • Lesley says

      July 16, 2025 at 4:18 pm

      Thank you Jen, I'm glad you enjoyed the peppers.

      Reply

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Recipe Rating




5 from 2 votes

Hi, I’m Lesley.

I’m the blogger, cook and creator behind Lost in Food.

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