Easy Chicken Parmesan Bake

INGREDIENTS

• 2 tablespoons olive oil
• 2 cloves garlic, crushed and finely chopped
• 1/4 teaspoon crushed red pepper flakes, or to taste
• 6 skinless, boneless chicken breast halves
• 2 cups prepared marinara sauce
• 1/4 cup chopped fresh basil
• 1 (8 ounce) package shredded mozzarella cheese, divided
• 1/2 cup grated Parmesan cheese, divided
• 1 (5 ounce) package garlic croutons