Zesty Italian Crescent Casserole

INGREDIENTS

1 lb

Ground beef, lean

1/4 cup

Onion

1 cup

Spaghetti sauce

6 oz

shredded mozzarella or monterey jack cheese

2 tbsp

Butter

1/3 cup

Parmesan cheese, grated

1/2 cup

Sour cream

1 8 ounce can

Pillsbury® recipe creations (or crescent dinner rolls pressed together along the perforations)