Keto Tuna Melts

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  • prep time

    prep time

    15 min

  • cook time

    cook time

    20 min

  • ready time

    ready time

    35 min

Keto Tuna Melts

We have made these delicious Keto Tuna Melts by filling fresh and colorful bell peppers with a tuna salad. The tuna salad is made by combining wild-caught canned tuna, a good quality mayo, and diced white onion. Feel free to add diced celery as well. The mixture is placed into a bell pepper which has been sliced in half. Then, the bell peppers are topped with a slice of muenster cheese which is melted in the oven. We love a quick, easy weeknight meal high in protein and healthy fats! Be sure to use avocado oil-based mayonnaise or homemade mayo for this Keto tuna recipe.

What is the best tuna to use for this recipe?

Please use wild-caught canned tuna for this recipe where possible. If you cannot find wild-caught tuna, please feel free to substitute it with conventional canned tuna.

What color bell peppers can I use?

You can use any color of bell peppers that you would like! We like to use a combination of colors for the best presentation. Many stores will sell a set of three bell peppers of multiple colors, which we find is the easiest to purchase and use.

Can I use a different type of cheese?

Yes! Feel free to use any type of sliced cheese you would like that melts easily. Some types of cheese that we think would be delicious here would be cheddar, pepper jack, Swiss cheese, or even mozzarella for this Keto tuna melt recipe.

To make the ultimate pairing, serve this Keto tuna recipe with other Keto recipes like our Keto Avocado Cucumber Salad!

  • Net Carbs

    3.7 g

  • Fiber

    1 g

  • Total Carbs

    4.8 g

  • Protein

    26.5 g

  • Fats

    28.1 g

375 cals

Keto Tuna Melts

#1 Low Carb & Keto Diet App Since 2010

Track macros, calories, and access top Keto recipes.

Download on the App Store
Get in on Google Play

Ingredients

  • Canned tuna

    Canned tuna

    15 oz

  • Mayonnaise

    Mayonnaise

    0.5 cup

  • Coarse Kosher Salt

    Coarse Kosher Salt

    0.25 tsp

  • Black pepper

    Black pepper

    0.13 tsp

  • White onion

    White onion

    3 tbsp, chopped

  • Yellow pepper

    Yellow pepper

    1 medium - 2 1/2" diameter x 2 3/4"

  • Red pepper

    Red pepper

    1 medium - 2 1/2" diameter x 2 3/4"

  • Muenster cheese

    Muenster cheese

    4 slice (from pre-sliced package) - each 3/4 ounce

Recipe Steps

steps 4

35 min

  • Step 1

    Preheat an oven to 350 F. Drain the canned tuna. Place the canned tuna in a medium-sized mixing bowl. Add in the mayo, kosher salt, black pepper, and finely diced white onion. Stir well to combine. Set aside.
    Step 1
  • Step 2

    Cut the bell peppers in half. Remove the stem as well as the seeds and discard them. Fill the bell pepper cups with the tuna salad mixture. Place the slices of cheese on top of each one.
    Step 2
  • Step 3

    Bake 350 F for about 15-20 minutes or until the cheese is nicely melted. The filling should be hot. Allow cooling slightly before serving.
    Step 3
  • Step 4

    Then serve immediately. Serve this with your favorite Keto salad. Enjoy!
    Step 4

Comments 5

  • FavorableKale981763

    FavorableKale981763 2 years ago

    Easy and delicious. I tried muenster the first time but tried mozzarella cheese to add more flavor.

    • AwesomeAvocado958717

      AwesomeAvocado958717 2 years ago

      Lovely! So delicious… I will keep for my regular use. It’s easy and tasty. Also good options for guest, no need to explain you are in low carb keto diet 👌

      • Storm14

        Storm14 2 years ago

        Everyone loved it! Easy and fast to make. It’s a keeper. 👍🏻

        • FortuitousMacadamia227774

          FortuitousMacadamia227774 2 years ago

          Quick and Easy delicious meal

          • Shariefromriverside

            Shariefromriverside 2 years ago

            Super easy and delicious!