Cheesy Layered Pepperoni Pasta Bake

Ingredients

• 1 pound ground beef
• 1 medium onion, chopped
• 1 medium green pepper, chopped
• 1 garlic clove, minced
• 3-1/2 cups spaghetti sauce
• 1 can (4 ounces) mushroom stems and pieces, drained
• 1 package (3-1/2 ounces) sliced pepperoni
• 8 ounces uncooked spiral pasta, wagon wheel pasta or pastas of your choice
• 1 cup shredded part-skim mozzarella cheese
• 1 cup shredded provolone cheese
• Grated Parmesan cheese