Summer Squash Casserole
["1 lb. lean ground beef", "1 med. onion, sliced", "1/2 bell pepper, chopped", "5 - 6 med. summer squash, sliced", "salt & pepper to taste"]
["Add squash to boiling water and cook until tender."]
["lean ground beef", "onion", "bell pepper", "summer squash", "salt"]