Combine ground beef, onion, and celery with a small amount of water in a saucepan. Boil until all moisture is absorbed. Mix beef mixture, rice, andmushroom soup; pour into a small greased casserole dish.
Add salt and pepper. Bake at 350° F for 25 minutes; Microwave: Cook on Medium for 8 to 10 minutes.Servings: 2 to 4