INGREDIENTS
2
lbs asparagus (trimmed)
4 tbsp
unsalted butter (divided, plus more to grease casserole)
2 1/2 tbsp
all-purpose flour
2 cups
half and half ((or equal parts milk and heavy cream))
2 tsp
garlic salt
1/4 tsp
black pepper
1 cup
parmesan cheese (divided)
1/2 cup
Panko bread crumbs