Chicken Parmesan Casserole

This looks good, hopefully it turns out better than the last recipe that I tried.

Ingredients: 
2 tbsp olive oil 
2 cloves garlic, crushed 
hot red pepper flakes, to taste 
6 boneless skinless chicken breasts (I used 5, but they were huge!) 
2 cups marinara sauce 
1/4 cup chopped basil 
8 oz mozzarella, shredded 
4 oz Parmesan, grated 
1 (5-oz) package garlic croutons