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 This tuna melt is loaded with veggies and placed on top of sliced tomato instead of bread and topped with melted cheese.  A healthy take on a classic comfort food! 

Straight on view of tomato tuna melt cut into showing layers of tomato, tuna, and melted cheese.


 

 There is nothing I like more than an easy recipe.  Well, maybe an easy and healthy recipe! Especially when it’s a recipe that my kids and the whole family enjoys.  This Tomato Tuna Melt meets all  of those criteria.  This gluten free version of the tuna melt, loaded with veggies is sure to please the whole family!

These tomato tuna melts are:

  • easy to make
  • gluten free
  • low carb
  • perfect for a light lunch
How to make tomato tuna melts step by step. Showing ingredient sin a glass bowl for tuna salad. Ingredients mixed together. A small baking sheet with thick slices of tomato that has been sprinkled with salt and pepper. The tomatoes topped with scoops of tuna salad. Tomato and tuna topped with slices of cheese. After baking, the cheese is melted over the top of the tuna and tomato.

How to make Tomato Tuna Melts:

  1. Slice and prepare the tomato: slice the tomato into thick slices, lay on a prepared baking sheet. Sprinkle with salt and pepper.
  2. Make tuna salad: mix together the tuna, mayonnaise, dijon, red onion, celery. Add other ingredients if desired.
  3. Layer: spoon tuna salad onto the top of the tomato slices. Top all the tomatoes with a slice of cheese.
  4. Broil: broil the tomato tuna melts for several minutes until the cheese is melted and bubbly.
Overhead shot of melted cheese over tuna salad on top of thick sliced tuna, with a fork laying on the side on a white plate.

More Tomato Recipes:

More Healthy Options:

Tomato Tuna Melt

5 from 7 votes
Prep: 5 minutes
Cook: 3 minutes
Total: 8 minutes
Servings: 4
Author: Serene
This tuna melt is loaded with veggies and placed on top of sliced tomato instead of bread and topped with melted cheese. A healthy take on a classic comfort food!
Slice of tomato topped with tuna salad and covered with melted cheese.

Ingredients  

  • 1 tomato
  • 2 6 ounce cans tuna
  • ¼ cup red onon diced
  • 1 stalk celery chopped
  • ¼ cup Mayonnaise
  • 1 tbsp dijon mustard
  • salt and pepper to taste
  • 4 slices cheese

Instructions 

  • Preheat broiler. Line a small baking sheet with foil.
  • Slice the tomato into large slices. Place the tomato slices on to a cookie sheet lined with foil, sprinkle the tomato with salt and pepper. Set aside.
  • Open and drain the tuna, spoon into a medium sized bowl. Add in the chopped up red onion, celery, mayonnaise, dijon, and salt and pepper. Stir to combine.
  • Add one spoonful of tuna mixture onto each tomato slice. Top each tomato with a slice of cheese.
  • Place under the broiler and cook for about 2-3 minutes just until the cheese is melted.

Nutrition

Calories: 106kcal | Carbohydrates: 2g | Protein: 17g | Fat: 4g | Saturated Fat: 1g | Cholesterol: 32mg | Sodium: 255mg | Potassium: 235mg | Fiber: 1g | Sugar: 1g | Vitamin A: 480IU | Vitamin C: 11mg | Calcium: 18mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Like this? Leave a comment below!

Recipe first appeared on House of Yumm on January 13, 2015. Updated June 8, 2020 with new images and information.


Welcome to my kitchen!

Welcome to the House of Yumm!! My name is Serene. I’m the food photographer, recipe developer, and official taste tester around these parts.

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14 Comments

  1. Love the recipe, but for the bell pepper. I can’t eat any of the bell family. I’ll try other types of mild peppers or dill pickles

  2. These look so good, Serene! What a great idea! I’m going to make these for dinner soon for sure.

  3. How gorgeous and genius are these, Serene?! I love to eat a thick slice of tomato with some salt and pepper, but now I think I’m always going to need some tuna and cheese on mine! So yummy!

  4. This is brilliant! I’m with you in balancing the rest of the meal with vegetables if there is loads of cheese. Pinned

  5. I’m totally making this for dinner tonight! I’ve gotten so BORED with healthy (not even halfway through January! #failure) so this is just what I needed to see.

  6. So, I’m trying to be good this year and significantly cut down on my carb intake. You never realize how much you love bread and noodles and rice and doughnuts. . .until you’re trying not to eat ANY of it. Hmmmppff. I’m loving this low carb idea and it’s one I plan to try. I’ll let you know when I hit my goal weight. Expect a call in a couple years. Just kidding. Hope it’s sooner than that!