Tomato Tuna Melts

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For these quick and easy, low-carb stuffed tomato tuna melts, I swapped the bread for tomatoes and topped with tuna salad and melted cheddar. Perfect for lunch and a great way to use up those summer tomatoes!

I swapped the bread for tomatoes in these quick and easy, low-carb stuffed tomato tuna melts made with tuna salad and melted cheddar. Perfect for lunch and a great way to use up those summer tomatoes!
Tomato Tuna Melts

More similar, quick and easy lunch ideas I love are Tuna Deviled Eggs and Spicy Crab Stuffed Avocado. These are great recipes for bread-less, gluten free or low carb alternatives.

I often think up recipe ideas that sound good in my head but may not always translate into a blog-worthy recipe. These tuna topped tomatoes are one of those ideas I wasn’t sure how it would turn out. My first attempt I baked the tomatoes, so they were soft and warm but they were pretty messy to eat. Then I thought, why not just broil them. The result came out perfect, the tomatoes were nice and firm and plus this only takes 5 minutes to make! Great for gluten-free and low-carb diets.

Hope you enjoy this recipe!

How To Make Tomato Tuna Melts

I swapped the bread for tomatoes in these quick and easy, low-carb stuffed tomato tuna melts made with tuna salad and melted cheddar. Perfect for lunch and a great way to use up those summer tomatoes!

I swapped the bread for tomatoes in these quick and easy, low-carb stuffed tomato tuna melts made with tuna salad and melted cheddar. Perfect for lunch and a great way to use up those summer tomatoes!I swapped the bread for tomatoes in these quick and easy, low-carb stuffed tomato tuna melts made with tuna salad and melted cheddar. Perfect for lunch and a great way to use up those summer tomatoes!

More Quick Lunch Recipes I Like to Make:

I swapped the bread for tomatoes in these quick and easy, low-carb stuffed tomato tuna melts made with tuna salad and melted cheddar. Perfect for lunch and a great way to use up those summer tomatoes!
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4.93 from 14 votes
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Tomato Tuna Melts

4
5
3
SP
271 Cals 25.5 Protein 11.5 Carbs 7.5 Fats
Prep Time: 3 mins
Cook Time: 2 mins
Total Time: 5 mins
Yield: 2 Servings
COURSE: Lunch
CUISINE: American
I swapped the bread for tomatoes in these quick and easy, low-carb stuffed tomato tuna melts made with tuna salad and melted cheddar. Perfect for lunch and a great way to use up those summer tomatoes!

Ingredients

  • 1 can, 5 oz solid white tuna in water, slightly drained
  • 2 tbsp light mayo
  • 3 tbsp finely chopped celery
  • 1 tbsp finely chopped red onion
  • 1 tsp red wine vinegar
  • 2 ripe tomatoes, halved
  • 4 slices Cheddar cheese, 2 1/2 oz total

Instructions

  • Preheat the broiler to high and adjust the rack second from the top. Arrange the tomatoes on a baking tray, season with salt and pepper.
  • Combine the tuna salad ingredients in a small bowl.
  • Top each with 1/4 cup tuna salad and a slice of cheese. Broil the tomatoes until the cheese is melted, about 1 to 2 minutes. Remove from the oven and eat immediately.

Nutrition

Serving: 2halves, Calories: 271kcal, Carbohydrates: 11.5g, Protein: 25.5g, Fat: 7.5g, Saturated Fat: 6g, Cholesterol: 62mg, Sodium: 418.5mg, Fiber: 2g
Blue Smart Points: 4
Green Smart Points: 5
Purple Smart Points: 3
Points +: 5
Keywords: low carb tuna melt, stuffed tomato tuna melt, tomato tuna melt, tuna melt with tomato

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57 comments

  1. This was yummy. The first time I made it, I made a mess. The second time, I sliced the tomato, fanned out the slices on a plate, sprinkled with balsamic vinegar and pepper, spread the tuna over the sliced tomatoes and topped it with a couple tablespoons of grated Swiss. This very weird looking dish was absolutely delicious. Thanks for a great idea!

  2. Excellent.  I made my own version of tuna salad and did hollow out the tomatoes a bit but tasty abd a great way to eat less bread!!!!!

  3. These came out so good! I used leftover chicken breast and shredded it because I had it. I also scooped out the tomato as others suggested and I am glad I did because even scooped out I could barely squish all the filling in there. I saved the filling for gazpacho later in the week. I also used cucumber and red bell pepper with the red onion and cut the mayo in half. It was super hot here today so I made little foil baskets and put these on the grill for about 2 min. on high rather than the broiler. Will definitely be making again!

  4. I make this using red bell pepper instead of the tomato — so good!

  5. This was so easy to make.  Thank you for sharing this simple and yummy dish!!  I halved everything and used a 2.5 ounce pouch of tuna. 

  6. Can this be made in the mroning and brought to work for lunch?

  7. Very tasty! I doubled the recipe, and halved the mayo since I used tuna in olive oil (drained 1 can, used the oil from the other). Quick and easy summer lunch!

  8. Has anyone tried these in the air fryer? 

  9. I made this today for lunch using fresh tomatoes from our garden. This was really good. I did not have cheddar cheese on hand so I used thin slices of Pepper Jack cheese and it was probably just as good as the cheddar cheese would have been.

  10. Made these today- they were so good!!  You should do a low-carb cookbook next!!  😉🙏

  11. I’ve been making this lately and it hits the spot. Thank you so much!

  12. Absolutely delicious! Used 3 Roma tomatoes instead. Slightly salt & peppered the tomatoes then broiled alone for 2 minutes before adding tuna salad & cheese. Then broiled again for 4 minutes. Would also be delicious with avocado halves. Thanks for the recipe!

  13. could I substitute for turkey or chicken instead?

  14. How would you adapt this for keto or lower carb? Thanks! 

  15. What’s a good side dish to make this with?

  16. Excellent lunch choice for a beautiful spring day. Not heavy but it satisfies.

  17. These are so good,
    I will be eating these all summer

  18. Loved these!! Sooo yummy!

  19. Great combo!! I loved every bite! 

  20. The fat grams are missing from the nutrition information.  Can you tell me what it is?

  21. i made this but subbed out red bell peppers for the tomatoes. it was so delicious and the peppers made it a little easier to eat because they held together! thanks for the recipe!

  22. Perfect lunchtime meal. I lacked onions and celery, so I subbed grated carrots and minced cucumbers, but it still came out great I ate the Tuna Melt with 1/2 an avocado and a salad. Yum! Yum. Thank you for the great recipe.

  23. I wonder if you could  scoop out the inside of the tomato and stuff the tomato with the tuna and top with cheese? When I made it two tomatos where to much maybe I got the wrong size tomatos.

  24. Could you use Greek yogurt instead of mayo? I don’t cook with it much but use it for cold tuna. 🙂

  25. This one surprised me how much I liked it! I had a few tomatoes I needed to use up and I did end up tweaking it a bit based on what I had. I added some capers to my tuna, used a little less mayo, scooped out the inside of the tomatoes, and just used shredded part-skim mozzarella (all I had)…so tasty and filling! Mine worked out to 4 smartpoints for all 4 halves! Thanks for such a great idea, I’ll be making this one again and again.

  26. This looks soooo yummie!!! Only problem husband not a tuna kinda guy……I HAVE used ground turkey, venison, sausage & chicken……

  27. I made this once with tuna and today, swapped out the tuna for shrimp.  Yum!

  28. We loved this however next time I will be using only a thick slice of tomato rather than a half.  Perhaps the tomatoes I purchased were too large but it interfered with the delicious and light tuna.  Otherwise a keeper.

  29. I made these for lunch today.  It was so good! I used a fresh tomato from my garden and divided a piece of cabot light cheddar between the two halves.  It brought the ww points down to 5!!  

  30. I made them last night for supper and I can easily see having them for supper once a week. They were that good!

  31. Made these tonight! LOVED it! Very filling too. I wonder if the other half will be ok for lunch tomorrow?

  32. I think I want to try this out this weekend for sure.

  33. What’s a broiler 

  34. Made tonight! Very good! I followed the above suggestion and have each half a good squeeze to get out some of the juice and seeds so they’d be less runny. I paired it with your rainbow potato salad which was also great! Think I’ll be making these again soon! So easy!

  35. I made this for my family yesterday and they loved it, even my brother that does not like tomato was impress. Love your recipes. <3 You have made my Dominican relatives love veggies more than rice and beans! lol

  36. Tried with Parmesan cheese on top. 
    Delicious – needed to cook tomatoes more as I prefer softer. 

  37. Pretty sure eggs are not dairy (re: the mayo swap note), but cheddar cheese sure is. Might want to edit :p

    • Thank you for this. It amazes me when I hear people say eggs are dairy. Which leads me to ask the last time they’ve had chicken milk. ?

  38. I had this for lunch and it was very tasty – thanks!

  39. I made this for lunch today and it was really tasty.  Thanks!

      • DELICIOUS!! I used Wild Planet Tuna because you never have to drain. I think next time I make this I will trim the rounded bottom of my tomatoes so they will not roll over trying to put  cookie sheet in the oven. I bought thin sliced Kroger Brand cheese and 4 slices were exactly 2-1/2 ounces total! 
        My husband enjoyed this too! Thank you, Gina!  I am doing January Meal Plan and enjoy not having to think about what I’m going to fix several times a day!❤️

  40. Brilliant…thanks

  41. My tomatoes are going crazy in my garden this year. I’m doing straw bale gardening, wow! Anyway, I made these for lunch today, SO GOOD and simple! I added dill and I didn’t have celery (sad face) but still worked great. It made 4 so I’ll eat those tomorrow for lunch.

  42. You just solved the question regarding, “what’s for dinner tonight”. This is going be a great recipe to make for a lite dinner, with a side salad. Love you posts. As always thanks!

  43. If I could make a suggestion? Cut tomatoes in half and gently squeeze to remove some seeds, then place on sheet and sprinkle with salt. Let sit for 20-30 min. Then, when ready to assemble, give another squeeze to release more water and seeds from tomatoes, then top with tuna and cheese. It makes the tuna stay more solid and less wet. What a delicious way to make use of summer tomatoes!

  44. Wonderful summer meal. We had this for dinner tonight and I followed the recipe exactly and it was great

  45. Loving this amazing tomato tuna melt recipe! Can’t wait to try!