These Keto Tuna Melt Poppers are a low-carb twist on the classic tuna melt—made with sweet mini bell peppers, creamy tuna salad, and gooey melted cheddar for a protein-packed bite that’s perfect as a snack, appetizer, or light lunch.
Why You’ll Love This Recipe
Keto Tuna Melt Poppers are the ultimate fusion of flavor, convenience, and nutrition. By using mini bell peppers as the base instead of bread, this dish keeps carbs low while delivering the same comforting taste of a traditional tuna melt. The creamy tuna filling is loaded with savory depth thanks to Dijon mustard, celery, and red onion, while the melted cheddar on top adds a gooey finish that ties it all together. These poppers are easy to make, kid-friendly, great for meal prep, and perfect for entertaining or midday snacking.
Ingredients
(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)
- 12 mini bell peppers, halved and deseeded
- 2 cans (5 oz each) tuna, drained
- 1/4 cup mayonnaise
- 1 tablespoon Dijon mustard
- 1/4 cup celery, finely chopped
- 1 tablespoon red onion, minced
- Salt and pepper to taste
- 3/4 cup shredded or sliced cheddar cheese
- Fresh parsley for garnish (optional)
Directions
- Preheat the oven to 375°F (190°C) and line a baking sheet with parchment paper.
- In a medium bowl, mix together the drained tuna, mayonnaise, Dijon mustard, celery, red onion, salt, and pepper until thoroughly combined.
- Spoon the tuna mixture evenly into each halved mini bell pepper.
- Top each pepper with a portion of shredded or sliced cheddar cheese.
- Arrange the stuffed peppers on the prepared baking sheet.
- Bake for 10–12 minutes, or until the cheese is melted and bubbly.
- Remove from oven, garnish with chopped parsley if desired, and serve warm.
Servings and timing
Servings: 6 servings
Prep Time: 10 minutes
Cooking Time: 12 minutes
Total Time: 22 minutes
Calories: Approximately 140 kcal per serving
Variations
- Spicy Kick: Use pepper jack cheese or add a dash of hot sauce to the tuna mixture.
- Avocado Addition: Stir mashed avocado into the tuna salad for added creaminess and healthy fats.
- Different Cheese: Substitute Swiss, mozzarella, or provolone for a new twist.
- Herb Blend: Add chopped dill, parsley, or chives for fresh herbal notes.
- Tuna Swap: Use canned salmon or shredded chicken as an alternative protein.
Storage/Reheating
Store leftover poppers in an airtight container in the refrigerator for up to 3 days. Reheat in a 350°F (175°C) oven for 8–10 minutes or microwave for 30–45 seconds. For best texture, avoid freezing, as the bell peppers may become watery upon thawing.
FAQs
Can I make these ahead of time?
Yes, you can assemble the poppers up to a day ahead and bake just before serving.
Are these poppers keto-friendly?
Absolutely. They are low in carbs, high in protein, and made with keto-approved ingredients.
Can I use full-sized bell peppers?
Yes, but slice them into quarters or strips to create a similar bite-sized shape.
What kind of tuna is best for this recipe?
Chunk light or solid white tuna in water or oil both work well. Drain thoroughly before using.
Can I use a different type of cheese?
Yes, feel free to experiment with your favorite melty cheeses like gouda, Swiss, or Havarti.
How do I prevent the peppers from becoming soggy?
Avoid overbaking and ensure tuna is well-drained to minimize excess moisture.
Are these suitable for meal prep?
Yes, they’re excellent for meal prepping and can be stored and reheated easily.
Can I make this dairy-free?
Yes, use dairy-free cheese and a vegan mayo alternative for a dairy-free version.
What can I serve with these poppers?
They pair well with a side salad, roasted vegetables, or a bowl of keto soup.
How can I make the filling creamier?
Add more mayonnaise or mix in a spoonful of cream cheese for a richer filling.
Conclusion
Keto Tuna Melt Poppers are a delicious and nutritious way to enjoy a classic flavor combination without the carbs. With their vibrant presentation, quick preparation, and customizable ingredients, they’re perfect for entertaining, snacking, or light meals. Whether you’re following a ketogenic lifestyle or simply looking for a wholesome, protein-packed bite, these poppers will satisfy your cravings while keeping things healthy and flavorful.
PrintKeto Tuna Melt Poppers
These Keto Tuna Melt Poppers are a low-carb twist on the classic tuna melt—made with sweet mini bell peppers, creamy tuna salad, and gooey melted cheddar for a protein-packed bite that’s perfect as a snack, appetizer, or light lunch.
- Prep Time: 10 minutes
- Cook Time: 12 minutes
- Total Time: 22 minutes
- Yield: 6 servings 1x
- Category: Appetizer
- Method: Baking
- Cuisine: American
Ingredients
- 12 mini bell peppers, halved and deseeded
- 2 cans (5 oz each) tuna, drained
- 1/4 cup mayonnaise
- 1 tablespoon Dijon mustard
- 1/4 cup celery, finely chopped
- 1 tablespoon red onion, minced
- Salt and pepper to taste
- 3/4 cup shredded or sliced cheddar cheese
- Fresh parsley for garnish (optional)
Instructions
- Preheat oven to 375°F (190°C) and line a baking sheet with parchment paper.
- In a bowl, mix together tuna, mayonnaise, Dijon mustard, celery, red onion, salt, and pepper until well combined.
- Spoon the tuna mixture into each mini pepper half.
- Top each popper with shredded or sliced cheddar cheese.
- Place on the prepared baking sheet and bake for 10–12 minutes, or until the cheese is melted and bubbly.
- Garnish with chopped parsley if desired and serve warm.
Notes
- Use canned salmon or chicken as a variation.
- Add a pinch of paprika or cayenne for a spicy kick.
- Best served warm, but also tasty at room temperature.
Nutrition
- Serving Size: 1 serving
- Calories: 140 kcal
- Sugar: 2g
- Sodium: 290mg
- Fat: 10g
- Saturated Fat: 3g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 3g
- Fiber: 1g
- Protein: 10g
- Cholesterol: 30mg