Best Tuna Stuffed Bell Peppers Recipe

Growing up, my only experience with bell peppers was slicing them up for salads or dipping them in ranch. That’s just how we ate them in our house. When my friend served me stuffed peppers at a dinner party, I was amazed – I had no idea they could be the star of the meal!

Turns out, making stuffed peppers is way easier than I thought, and using tuna instead of the usual ground beef keeps things light and quick. No need for lengthy cooking times or complicated ingredients. These tuna stuffed peppers have become my go-to when I want something that feels fancy but doesn’t take all evening to make.

What Kind of Tuna Should I Use?

For this recipe, you’ll want to stick with tuna packed in olive oil rather than water – it adds so much more flavor and keeps the filling moist. While the recipe calls for yellowfin tuna, you can also use skipjack or albacore tuna if that’s what you have on hand. Oil-packed tuna tends to be a bit pricier than water-packed, but the difference in taste is worth the extra cost. When shopping, look for solid or chunk tuna rather than flaked, as it gives you a better texture for the filling and won’t turn mushy when you mix it with the other ingredients. Just remember to drain the oil before using, but don’t go crazy with it – leaving a little bit of that flavored oil will make your filling even tastier.

Options for Substitutions

This recipe is pretty flexible and you can make several easy swaps depending on what you have in your kitchen:

• Bell peppers: Any color bell pepper works great here. You could also use large tomatoes, hollowed zucchini boats, or even portobello mushroom caps as your vessels.
• Tuna: While tuna in olive oil gives the best flavor, you can use water-packed tuna – just add 1 tablespoon of olive oil to the mix. Canned salmon or chicken also work well as alternatives.
• Greek yogurt: Mayo works perfectly here, or try mashed avocado for a dairy-free option. If using avocado, add an extra squeeze of lemon juice to prevent browning.
• Celery: You can swap celery with diced cucumber or chopped water chestnuts for that nice crunch. Diced jicama is another good option.
• Green onions: Regular onions (finely diced) or chives work fine. If using regular onions, use about 1/4 cup total.
• Cheddar cheese: Feel free to use any melting cheese you like – mozzarella, monterey jack, or provolone are all good choices. For a dairy-free version, you can skip the cheese or use a dairy-free alternative.

Watch Out for These Mistakes While Cooking

The biggest mistake when preparing stuffed bell peppers is not pre-cooking the peppers before stuffing them, which can leave you with raw, crunchy peppers and fully cooked filling – instead, blanch them in boiling water for 3-4 minutes until slightly softened but still holding their shape.

Another common error is not draining the tuna well enough, which can make your filling watery and cause the peppers to become soggy – make sure to press out all excess oil or water from the tuna before mixing with other ingredients.

To prevent a dry filling, don’t skip the Greek yogurt or try to reduce its amount too much, as it provides the perfect creamy texture while keeping the stuffing moist; and when it comes to the cheese topping, add it only in the last few minutes of baking to prevent it from burning or becoming too crispy.

For the best flavor development, let the tuna mixture rest for about 15 minutes before stuffing the peppers, allowing all the flavors to blend together nicely.

What to Serve With Tuna Stuffed Peppers?

These tuna stuffed peppers make a great main dish that pairs well with several simple sides. A light green salad with lemon vinaigrette makes the perfect fresh companion, while quinoa or brown rice can help round out the meal if you’re extra hungry. For a Mediterranean twist, try serving them with cucumber and tomato salad or some warm pita bread on the side. Since these peppers are already protein-packed, you might just want to add some roasted vegetables like zucchini or asparagus to complete your plate.

Storage Instructions

Keep Fresh: These tuna stuffed peppers will stay good in an airtight container in the fridge for up to 3 days. The flavors actually get better after a day as everything melds together! Just keep in mind that the peppers might soften slightly over time.

Make Ahead: You can prep these peppers a day in advance – just prepare the tuna filling and store it separately from the cut peppers. When you’re ready to eat, stuff the peppers and pop them in the oven. This makes dinner prep super quick and easy!

Warm Up: To enjoy leftover stuffed peppers, simply place them in the microwave for 1-2 minutes until heated through. If you prefer, you can also warm them in the oven at 350°F for about 10-15 minutes – this helps maintain their texture better than microwaving.

Preparation Time	10-15 minutes
Cooking Time	20-25 minutes
Total Time	30-40 minutes
Level of Difficulty	Easy

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 600-700
• Protein: 50-60 g
• Fat: 35-40 g
• Carbohydrates: 20-25 g

Ingredients

For the bell peppers:

• 2 bell peppers (any color you prefer)

For the tuna filling:

• 2 cans solid yellowfin tuna in olive oil (drained well, I use Wild Planet)
• 4 green onions (sliced thinly)
• 1 tbsp Dijon mustard (adds a nice zesty kick)
• 2 tbsp fresh lemon juice
• 1/4 tsp salt
• 1/4 tsp black pepper
• 1/3 cup Greek yogurt (for creaminess and tang)
• 2 celery stalks (finely diced for optimal texture)

For the topping:

• 1/4 cup grated cheddar cheese (shredded from a block for best melt)

Step 1: Prepare and Pre-Bake the Peppers

Preheat your oven to 425°F (220°C).

Place the green pepper halves in an oven-safe baking dish with the cut side up.

Bake the peppers until they soften, which should take about 15 minutes.

This will create a tender base for the filling.

Step 2: Mix the Tuna Salad

While the peppers are baking, prepare the tuna salad.

In a mixing bowl, combine Greek yogurt, lemon juice, Dijon mustard, salt, and pepper, stirring until well mixed.

Add the tuna, chopped celery, and most of the green onions, reserving some for garnish.

Gently fold all the ingredients together until everything is well incorporated.

Step 3: Fill and Top the Peppers

Once the green peppers are softened, remove them from the oven.

Carefully scoop the tuna salad mixture into the crevice of each baked pepper half.

Sprinkle shredded cheddar cheese over the top of the tuna salad.

Step 4: Melt the Cheese and Serve

Return the stuffed peppers to the oven and bake for an additional 5 minutes, or until the cheddar cheese is melted and bubbly.

Once done, remove from the oven and garnish with the reserved green onions.

Serve the tuna-stuffed peppers warm, and enjoy the meal!