Tuna Stuffed Bell Peppers
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Published Aug 26, 2020, Updated Nov 28, 2022
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These tuna stuffed bell peppers are Greek-inspired with Kalamata olives, tomatoes and cottage cheese. They’re healthy, delicious and a great weeknight meal option.
These stuffed peppers are so simple to make, amazingly flavorful and perfect for a quick healthy weeknight meal. The tuna mixture has a richness to it from the olives, oil and cottage cheese but it’s super healthy: one serving (2 stuffed pepper halves) has only 239 calories, 24 grams of protein, 18 grams of carbs and 9 grams of fat.
With stats like that, this tasty recipe is definitely a keeper. I’m excited to have another recipe to add to my weeknight meal rotation.

Ingredients Needed for Tuna Stuffed Peppers
- bell peppers โ orange, yellow or red all work!
- red onion โ this adds flavor and a bit of crunch. Feel free to use yellow onion if red onion feels too strong for your taste.
- button mushrooms โ feel free to use another type of mushroom if you prefer.
- canned tuna โ I typically buy Albacore tuna because you get bigger chunks of meat that arenโt mushy. I really like the Wild Planet brand!
- cherry tomatoes โ I love the hint of sweetness and burst of flavor the cherry tomatoes add with every bite.
- kalamata olives โ the olives add a nice saltiness and some healthy fats.
- cottage cheese โ I like to get Friendship brands no salt added. You could also use Greek yogurt or mayo in place of the cottage cheese.
- fresh lemon juice โ I love the bright flavor the lemon juice adds!
- extra virgin olive oil โ just a touch!
- dijion mustard โ adds so much flavor. Don’t skip this!
- seasonings and spices โ dried parsley, dried oregano, crushed red pepper (optional), sea salt and pepper.
How to Make Tuna Stuffed Bell Peppers
Broil peppers: I like to broil the peppers before stuffing and baking them because I prefer my peppers to be roasted and soft rather than raw and crunchy. If you’d prefer crunchy peppers, feel free to skip the broiling step!
Bake peppers: Place whole peppers on a baking sheet or baking stone and broil for 5-7 minutes, turning once halfway through broiling. Watch the peppers carefully so they don’t completely char. Remove from the heat and set aside to cool.
Make tuna filling: While the peppers cool, make the tuna filling. Sautรฉ the onions and mushrooms in a skillet until soft and fragrant. Season with salt and pepper while cooking. Add the onion mixture to a medium size mixing bowl.
Combine ingredients: Add the tuna, tomatoes, olives, cottage cheese, lemon juice, olive oil, mustard, parsley and oregano to the bowl with the onion mixture. Break apart the tuna with a fork and stir all ingredients together. Season to taste with crushed red pepper and black pepper. The mixture shouldn’t need any additional salt.
Stuff peppers and bake: When your peppers are cool enough to handle, cut the peppers in half and remove the seeds and membranes. Lay the pepper halves on your baking sheet and fill with the tuna mixture. Bake for 10-15 minutes until warmed through. Serve immediately!
There should be just enough tuna mixture to fill your 4 pepper halves but if you have any leftover it’s delicious on it’s own!
Storing Leftover Stuffed Peppers
As you can tell, I made a double batch for these pictures and the leftovers were delicious! Don’t get me wrong, I prefer them fresh out of the oven but the leftovers were still solid.
Let the peppers cool slightly and either cover your baking dish or transfer peppers to an airtight container. Store in the fridge for up to five days. When you’re ready to reheat, I recommend heating in a toaster oven or conventional oven as opposed to a microwave.
More Tuna Recipes You Might Enjoy
- Healthy Tuna Salad
- Spaghetti Squash Tuna Noodle Casserole
- Tuna Egg Salad
- Tuna Curry Bowl with Cauliflower Rice
- Open-Faced BBQ Hummus Tuna Sandwich
- Lentil Tuna Salad
- Simple Lemony Tuna Salad Packable Lunch
- Broccoli Avocado Tuna Bowl
- Sweet Potato Tuna Salad
- Healthy Tuna Noodle Casserole
If you enjoyed this recipe, please consider leaving a โญ star rating and let me know how it went in the ๐ comments below.
Tuna Stuffed Bell Peppers
Ingredients
- 2 medium bell peppers, orange, yellow or red
- 1/3 cup red onion, chopped into small pieces
- 2 button mushrooms, chopped into small pieces
- 1 5- oz. can water-packed tuna
- 1/2 cup chopped cherry tomatoes
- 1/4 cup chopped kalamata olives
- 1/4 cup no salt added cottage cheese, I use the Friendship brand
- 1 Tablespoon fresh lemon juice
- 1 teaspoon extra virgin olive oil
- 1/2 teaspoon dijion mustard
- 1/2 teaspoon dried parsley
- 1/2 teaspoon dried oregano
- crushed red pepper, optional
- freshly ground black pepper
- sea salt
Instructions
- Broil peppers: Preheat oven to broil. Place whole peppers onto a baking stone or sheet and broil for 5-7 minutes, turning once mid-way through broiling. Watch the peppers carefully so you don’t complete char them. Remove from the heat, and place on a plate to cool.
- Turn oven down: Turn oven from broil to 350ยฐF.
- Saute veggies: While waiting for the peppers to cool, make your tuna filling. Spray a skillet with cooking spray and sautรฉ the onions and mushrooms until soft and fragrant, sprinkle with sea salt and black pepper while cooking.
- Combine remaining filling ingredients: Add cooked onion and mushroom into a medium size mixing bowl. Add tuna, tomatoes, olives, cottage cheese, lemon juice, olive oil, mustard, parsley and oregano to the bowl as well. Break apart tuna with a fork and stir all the ingredients together. Season to taste with crushed red pepper and ground pepper (it should not need any additional salt).
- Stuff peppers: Once the broiled peppers are cool enough to handle, carefully cut the peppers in half, remove seeds and membranes (be careful as it may still be hot inside). Lay the 4 pepper halves on the baking stone and fill with the tuna mixture. You should have just enough tuna to fill the 4 pepper halves. If you have extra, you can eat it on the side or save it for later.
- Bake peppers: Place peppers in the oven for 10-15 minutes, until warm all the way through. Remove from oven, serve and enjoy.
Notes
- Broiling peppers: You’ll notice that I broiled the peppers before stuffing and baking them. I did this because I wanted the pepper to be roasted and soft rather than raw and crunchy. That’s just how I prefer stuffed peppers. If you’d rather them be crunchy. Feel free to skip the broiling portion of the recipe.
- Bell peppers: Orange, yellow or red all work!
- Red onion: Feel free to use yellow onion if red onion feels too strong for your taste.
- Button mushroom: Feel free to use another type of mushroom if you prefer.
- Cottage cheese: Greek yogurt or mayo could be subbed for the cottage cheese.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Love this mixture. I was looking or a tuna filling for some large portobello mushrooms and saw this and adapted it. I had preroasted the mushroom caps. Then added chopped bell pepper to the onion. Really like the combination of olives lemon cottage cheese. Added some greek seasoning and like one reviewer added some slivered almonds on top. Excellent
I was not sure about these but man oh man was I wrong. These are a piece of heaven. So delicious. I made them without the olives because not a fan and then added a little cheese on top. Perfect ๐
Woo!! That makes me so happy to hear, Tara. I’m so pumped you loved this recipe. Thanks for giving it a try and for coming back to leave a comment + star rating. I so appreciate it. <3
Iโve made this for two nights in a row – it was so delicious!!! Loved every mouthful.
Ahh yay!! I’m so glad you’re loving this recipe, Debbie. Thanks for making it and for coming back to leave a comment + star rating. I so appreciate it!
Hey! Going to try this tonight ๐ Just a question, you mentioned in the text 1 serving is 2 halves for 220 calories, but in the nutrition it’s 1 half for 204; do you know which one is closer? Thank you, and thanks for the website!!
Sorry about the confusion, Miguel! It should be closer to the 220 for a two halves. I just updated the post. ๐
I really liked this recipe. Added my twist and tweaked just a little. I will be revisiting this one often. Thanks for sharing