These Low Calorie Tuna Melt Sandwiches are just 240 calories and come with a low calorie bread recipe!But just incase you want to make the healthy tuna melts with your favorite bread, I have included different bread variations below in the next section.
Add all of the tuna, greek yogurt, dijon mustard, celery, onion, relish, dill, celery salt, and pepper to a large bowl.
Use the back of a spoon, fork, or a spatula to mix and squish all of the ingredients together.
To assemble the tuna melts, lay 3 slices of bread out on a cutting board. Top each with one slice of cheese, 1 slice of tomato, and 1/3 of the tuna mixture. Top each with the remaining slice of bread.
Heat a griddle or large skillet over medium heat, and spray with olive oil.
Add the sandwiches to the griddle and cook for 3-5 minutes each side until the bread is toasted and the cheese melted.