Amanda's Stuffed Peppers

INGREDIENTS

• 1 pound ground beef
• 1/2 cup bread crumbs
• 1/2 teaspoon Italian seasoning
• 3 cloves garlic, chopped
• 3/4 cup shredded mozzarella cheese
• 3/4 cup grated Parmesan cheese
• 1 egg, lightly beaten
• 6 white mushrooms, chopped
• 1/2 small onion, finely chopped
• 4 bell peppers, tops cut off and seeded
• 1 (26 ounce) can spaghetti sauce