Beef Mac Casserole

Ingredients

• 1 (16 ounce) package uncooked pasta shells
• 1 pound ground beef
• 1/4 cup chopped onions
• 1/4 cup chopped green bell pepper
• 1 (3 ounce) package pepperoni, sliced
• 2 (8 ounce) cans tomato sauce
• 2 cups tomato juice
• 3/4 teaspoon dried oregano
• 1/2 teaspoon celery salt
• 1/4 teaspoon onion powder
• 1/4 teaspoon garlic salt
• 1/4 teaspoon dried basil
• 1/8 teaspoon crushed red pepper flakes
• 2 cups shredded mozzarella cheese