Baked Rigatoni with Beef, Mushrooms & Olives

Ingredients

• 2 cups uncooked rigatoni
• 1 lb lean ground beef
• 3 to 3.5 cups of your favorite pasta sauce/Italian gravy (Ragu, Prego, Muir Glen, etc.)* **
• 1 (3.8 oz.) can sliced ripe olives, drained
• 1/2 lb fresh mushrooms, sliced
• 1/2 cup chopped onion
• 2 cups shredded mozzarella cheese
• 1/2 cup grated Parmesan cheese
• Cooking spray