- 1 (16 ounce) package frozen ravioli
- 1 (26 ounce) jar spaghetti sauce, or more to taste
- 1 (6 ounce) pepperoni, or to taste
- 1 (2.25 ounce) can black olives, or to taste
- 1 (16 ounce) package shredded mozzarella cheese
- Preheat oven to 325 degrees F (165 degrees C).
- Fill a large pot with lightly salted water and bring to a rolling boil. Stir in frozen ravioli and return to a boil. Cook uncovered, stirring occasionally, until the ravioli float to the top and the filling is hot, 6 to 8 minutes. Drain.
- Cover the bottom of a 9×13-inch baking dish with some spaghetti sauce. Layer some pepperoni, olives, and mozzarella cheese over sauce. Add a layer of ravioli. Repeat layers of sauce, pepperoni, olives, mozzarella cheese, and ravioli until the baking dish is full.
- Bake in the preheated oven until sauce is bubbly and mozzarella cheese is melted, about 20 minutes.