1 c. ricotta cheese
1 c. mozzarella cheese
1/4 c. Parmesan cheese
1 egg, slightly beaten
1 pkg. frozen spinach, chopped
1 tsp. oregano, crushed well
16 oz. spaghetti sauce
12 jumbo sea shells, cooked

Mix first 6 ingredients. Stuff shells, put sauce in bottom of pan. Place stuffed shells in sauce. Spoon small amount over stuffed shells. Bake 30 minutes, covered with aluminum foil in 350 degree oven.