1 1/2 lbs. ground beef
1 sm. onion, chopped
2 c. mashed potatoes, prepared
1 c. shredded Cheddar cheese

Prepare mashed potatoes as you normally would. Brown ground beef in a skillet and drain off grease. Onion may be added and cooked along with ground beef. Place beef and onion into a casserole dish and spread evenly.