oats, quick or old-fashioned, uncooked
cream of mushroom soup
Cut 1/4-inch slice from top of each green pepper; remove seeds.
Cook green peppers about 5 minutes in enough boiling salted water to cover them; drain.
Pan-fry ground beef, onion and celery until lightly browned.
Add remaining ingredients; combine thoroughly.
Fill green peppers with meat mixture.
Stand upright in shallow baking pan; add small amount of water.
Bake in preheated 350 degree oven about 30 minutes.
Serve hot with mushroom sauce made by heating together mushroom soup and milk.