1 (8 ounce) package cream cheese, softened
1 (14 ounce) package pre-baked pizza crust
1 (5 ounce) can tuna, drained and flaked
1/2 cup thinly sliced red onion
1 1/2 cups shredded mozzarella cheese
crushed red pepper flakes, to taste
Preheat an oven to 400 degrees F.
Spread the softened cream cheese on the pre-baked crust. Sprinkle the tuna and onions over the pizza; then top with shredded mozzarella cheese and optional red pepper flakes. Bake in preheated oven until the cheese has melted and started to brown, about 15 to 20 minutes.