Crumble ground beef into 1 1/2 quart glass casserole. Add onion and cover ... bottom halves of buns on microproof plate. Spoon on ... minutes. Makes 8 servings.
Combine beef, onions and celery in 1 1/2 quart microproof casserole. Cover with casserole lid ... bottom halves of buns. Sprinkle with cheese and ... of buns. Serves 4.