20 ounces Earthbound Farm Frozen Organic Chopped Spinach
2 tablespoons butter (1/4 stick)
2 tablespoons unbleached all-purpose flour
1 1/2 cups whole or lowfat milk
1/2 cup heavy (whipping) cream
1/4 cup freshly grated Parmesan cheese
1/4 teaspoon freshly ground nutmeg
  coarse kosher salt and freshly ground black pepper (to taste)
1/4 cup toasted breadcrumbs (optional)