Stuffed Shells

1 package jumbo shells
10 ounces frozen chopped spinach
2 pounds ricotta or cottage cheese
1 egg
2 tablespoons Parmesan cheese
29 ounces marinara sauce
1/2 teaspoon salt
1/2 teaspoon oregano
1/4 teaspoon pepper

Parboil shells for 9 minutes. Drain and arrange on a flat surface.

Cook spinach and mix with ricotta or cottage cheese, egg and Parmesan cheese. Spoon into shells. Combine sauce and spices. Simmer for 2 minutes. Spread a little sauce into baking dish. Arrange shells in dish and cover with remaining sauce. Bake at 350 degrees F for 15 to 20 minutes.