1 (6 ounce) can tomato paste
1 (8 ounce) package shredded mozzarella cheese
2 (3 ounce) packages instant pizza mix
2 (9 inch) pizzas, sliced
In a medium saucepan, combine tomato paste, mozzarella cheese and pizza mix. Bring to a low boil.
Reduce heat to medium and add pizza slices. Cook for approximately 10 minutes, stirring frequently.