Crescent-topped Casserole

I found this in Taste of Home's Casserole Cookbook, and it's delicious!!! The beef mixture and crescent roll topping make for a real hearty meal!

• Ready In: 45 mins
• Serves: 6-8

Ingredients

• 2  lbs ground beef
• 1⁄4 cup  chopped onion
• 2 (8 ounce) cans tomato sauce
• 1  envelope  spaghetti sauce mix
• 3⁄4 cup sour cream
• 8  ounces  shredded mozzarella cheese
• 1 (8 ounce) package  refrigerated crescent dinner rolls
• 2  tablespoons butter or 2  tablespoons margarine, melted
• 1⁄3 cup  grated parmesan cheese

Directions

1. In a large skillet, cook beef and onion until meat loses its pinkness; drain.
2. Stir in tomato sauce and spaghetti sauce mix, then reduce heat.
3. Simmer, uncovered, for 5 minutes; remove from the heat.
4. Stir in sour cream, and spoon mixture into a greased 13" x 9" x 2" baking dish.
5. Sprinkle with mozzarella cheese.
6. Unroll the crescent roll dough into one rectangle, and seal seams and perforations.
7. Place over the cheese.
8. Brush with butter and sprinkle with Parmesan cheese.
9. Bake, uncovered at 375F for about 25 minutes, or until golden brown.