INGREDIENTS
4 cups
Baby spinach, leaves
8 oz
Mushrooms, mixed
1 cup
Onion
12 oz
Cavatappi or elbow pasta
3 tbsp
All-purpose flour
1/4 tsp
Cayenne pepper
1/2 cup
Italian panko breadcrumbs
3 tbsp
Butter, unsalted
1 1/2 cups
Gruyere cheese
4 cups
Milk
3/8 cup
Parmesan, grated