Heat oven to 350 degrees. In skillet, cook ground beef and onion until meat is ... into 1/2 quart casserole. Set aside. In saucepan, ... in milk and potato flakes with fork until potatoes ... 30 to 40 minutes.
Put potatoes on stove to boil. Brown ground beef; drain off excess fat. ... ground beef and potato slices in casserole dish, ending with potatoes. Top ... oven until cheese melts.