All in One Pot Saucy Pasta

1 pound ground beef

1 medium onion, chopped

1 jar (26 oz) spaghetti sauce

3 cups bite sized pasta

1 cup sliced mushrooms

1 cup shredded pizza four cheese

Brown meat and onion in deep nonstick skillet.  Add 3 1/2 cups water, spaghetti sauce and pasta; cover.  Bring to boil.  Reduce heat to low; simmer 20 minutes, stirring occasionally.  Add mushrooms; cook 5 minutes.  Stir in cheese.

Serves 6