Cheeseburger Casserole

1 lb (at least 80%) lean ground beef
3/4 cup chopped onion
1 can (11 oz) condensed Cheddar cheese soup
1 cup (Green Giant) frozen mixed vegetables
1/4 cup milk
2 cups Original Bisquick mix
3/4 cup water
1 cup shredded Cheddar cheese (4 oz)

1. Heat oven to 400ºF. Generously grease rectangular baking dish, 13x9x2 inches. Cook ground beef and onion in 10-inch skillet over medium heat, stirring occasionally, until beef is brown; drain. Stir in soup, vegetables and milk.

2. Stir Bisquick mix and water in baking dish until moistened; spread evenly. Spread beef mixture over batter. Sprinkle with cheese.

3. Bake 30 minutes.