Heat the oven to 375°F.
Spread the ricotta cheese in an even layer in a 9-inch pie plate. Top with 1/4 cup of the pepperoni and 1/2 cup mozzarella cheese. Carefully spread the sauce over the cheese. Sprinkle with the remaining pepperoni and mozzarella cheese.
Bake for 15 minutes or until it's hot. Let stand for 5 minutes.
Serve with the garlic bread or crackers for dipping.
Tip: Easy Substitution Tip: Substitute or add any of the following toppings for the pepperoni: Sliced pitted ripe olives, sliced mushrooms, chopped sweet peppers or chopped onions.