1/2 (16 oz.) box Creamette shells
1 lb. ground beef
1 1/2 c. celery, diced
1 c. onion, chopped
1 (28 oz.) can whole tomatoes
1 (6 oz.) can tomato paste
2 tsp. salt
1 tsp. oregano
1/4 tsp. pepper
1 c. grated American cheese

Prepare shells according to directions; drain. Brown hamburger, celery and onions; drain. Add tomatoes with liquid (Breaking up with spoon), tomato paste, salt, oregano and pepper. Simmer 5 minutes. Combine meat mixture with shells. Pour into a 3 quart casserole. Top with cheese. Bake at 350 degrees for 30 minutes.