INGREDIENTS
12 oz
Breakfast sausage, fresh links
2 cups
Leeks
2
Russet potatoes (1 1/2 pounds)
1 lb
Spinach, frozen dry squeezed
16
Eggs, large
3/4 tsp
Black pepper plus more, freshly ground
1 1/2 tsp
Kosher salt plus more
5 tbsp
Butter, unsalted
1 1/2 cups
Gruyere, grated
1 1/4 cups
Heavy cream
1/2 cup
Parmesan, grated