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Keto Tuna Melt Zucchini Boats

  • Author: Agnieszka
  • Total Time: 30 minutes
  • Yield: 4 servings 1x


Tuna Melt Zucchini Boats are a quick and easy low-carb version of a sandwich classic. Made with canned tuna, green pepper, celery and parsley, they are topped with melted cheddar cheese and perfect for a no-fuss lunch, snack or dinner.


Units Scale

2 medium zucchini
1 can tuna in water
1/3 cup green pepper, diced small
1/4 cup red onions, diced small
1 celery rib, diced small
2 tablespoons mayo
1 teaspoon Dijon mustard
2 tablespoons chopped parsley
1/3 cup grated cheddar cheese
Salt & pepper to taste


  1. Heat up the oven to 400 degrees Fahrenheit.
  2. Cut the zucchini in half lengthwise. Using a melon baller or a small spoon remove most of the seeds and flesh to make zucchini boats. I usually freeze the flesh in a zip lock bag and use in smoothies or soups.
  3. Place emptied zucchini boats on a baking tray and place in the preheated oven. Bake for 15-20 minutes until tender but not mushy.
  4. Make the tuna salad. In a medium bowl mix together tuna, green pepper, celery, red onions, parsley, mayo, mustard, salt and pepper.
  5. Stuff zucchini boats with tuna salad and top with grated cheese.
  6. Bake for 5-7 minutes in 410 degrees Fahrenheit or broil until the cheese is melted.
  7. Serve immediately.


You can swap mayo for Greek yogurt, if you want, or use a mix of 1 tablespoon mayo and 1 tablespoon yogurt.

Add whatever crunchy veggies you like: finely diced carrots, Jalapeno pepper, pickles and fresh herbs such as chives, cilantro, tarragon or dill.

  • Prep Time: 15 minutes
  • Cook Time: 15 minutes
  • Category: dinner, lunch
  • Cuisine: American

Keywords: keto tuna melt, low carb tuna melts, zucchini stuffed with tuna, tuna melt zucchini boats