INGREDIENTS
1
box refrigerated pie crust, makes two pies
2 tbsp
unsalted butter
1/4 cup
onion, diced
4 cups
fresh spinach
1
large egg
1/2 cup
ricotta cheese
1/4 cup
shredded parmesan cheese
1 tsp
kosher salt
1/4 tsp
black pepper
nutmeg
1
egg yolk, beaten, optional for brushing on pie crust