2 tbsp. grated Parmesan cheese
Salt and pepper
1 tbsp. extra-virgin olive oil
⅓ cup panko bread crumbs
4 oz. extra-sharp cheddar cheese, shredded (1 cup)
Small pinch cayenne pepper
½ tsp. Dijon mustard
4 oz. American cheese, shredded (1 cup)
8 oz. elbow macaroni
1 cup milk
1 ½ cups water