Ravioli Casserole

1 jar (28 ounces) spaghetti sauce
1 package (25 ounces) frozen cheese ravioli, cooked and drained
2 cups (16 ounces) small curd cottage cheese
4 cups (16 ounces) shredded mozzarella cheese
¼ cup grated Parmesan cheese

Spread ½ cup of spaghetti sauce in an ungreased 13 x 9 x 2 inch baking dish. Layer with half the ravioli, 1 ¼ cups of sauce, 1 cup cottage cheese, and 2 cups mozzarella cheese. Repeat layers. Sprinkle with Parmesan cheese.

Bake, uncovered, at 350 for 30 to 40 minutes or until bubbly. Let stand 5 to 10 minutes before serving. 6 to 8 servings.