Cheesy Pizza Ziti

• 3 cups uncooked rigatoni pasta
• 12 lb ground beef
• 12 cup sliced ripe black olives
• 2 (4 ounce) cans mushroom stems and pieces
• 1 (28 ounce) jar primavera pasta sauce
• 1 12 cups shredded mozzarella cheese

1. Heat oven to 350.
2. Cook and drain pasta.
3. While pasta is cooking, cook beef in 10-inch skillet over medium-high heat, stirring occasionally until browned; drain.
4. Mix pasta, beef, remaining ingredients except cheese in an ungreased 2 1/2-quart casserole.
5. Cover and bake about 30 minutes or until hot.
6. Sprinkle with cheese and bake uncovered for about 5 more minutes or until cheese is melted.

rigatoni pasta, ground beef, black olives, mushroom stems, pasta sauce, mozzarella cheese

Taken from www.food.com/recipe/cheesy-pizza-ziti-76054 (may not work)