Step 1

Preheat the oven to 325 degrees Fahrenheit.

Step 2

Spread out the slices of mozzarella onto two baking sheets lined with parchment paper.

Step 3

In a bowl, drain the cans of tuna in with the mayo and minced celery. Mix well.

Step 4

Bake the cheese until fully melted (about 4-5 minutes). Remove for the oven and allow to cool.

Step 5

Add a spoonful of tuna to the corner of each of the cheese shells.

Step 6

Fold the squares in half to make a triangle and press the sides closed firmly.

Step 7

Return to the oven for 5 to 10 minutes.

Step 8

Serve as is or pair it with your favorite keto-friendly bread: https://ketogenic.com/recipes/keto-bread-2/