Stuffed Shells

1 (12 oz.) pkg. jumbo shells (32-33 shells)
1/2 lb. ground beef, cooked and drained
2 c. (1 lb) Ricotta cheese
1/3 c. + 2 T. grated parmesan cheese
1 egg
1/2 t. parsley
1/4 t. oregano
1 t. salt
dash of pepper
3 c. (28 oz.) spaghetti sauce
1 c. shredded mozzarella cheese

Cook shells according to package directions. Drain well and cool in a single layer on wax paper to prevent sticking together. Mix together Ricotta cheese, 1/3 c. parmesan, egg, and seasonings. Spread a little bit of sauce in the bottom of a 9x13 pan. Fill shells with mixture and place in a single layer in pan, open side up. Sprinkle with mozzarella cheese. Pour remaining sauce on top and sprinkle with remaining parmesan. Cover and bake at 350 degrees for 45 minutes. Fills 32-33 shells.