lean ground beef
hot mashed potatoes
KRAFT Shredded Cheddar Cheese
Heat oven to 350°F.
Brown meat with onions in large skillet; drain. Add A.1.; bring to boil. Spoon into 1-1/2-qt. baking dish.
Mix potatoes and cheese; spread evenly over meat mixture.
Bake 12 to 15 min. or until heated through (165°F).