Preheat the oven to 375°F (190°C).

In a large bowl, combine flour and salt. Add cubed butter and mix until crumbly.

Stir in ice water, one tablespoon at a time, until the dough forms.

Roll out the dough and fit it into a pie dish.

In a skillet, cook ground beef and Italian sausage over medium heat until browned. Drain excess fat.

In a bowl, mix cooked meats with eggs, ricotta cheese, Parmesan cheese, spinach, garlic, oregano, black pepper, and salt.

Pour the filling into the prepared pie crust.

Cover with additional pie crust, seal the edges, and cut slits for steam to escape.

Bake for 50 minutes or until the crust is golden brown.

Let cool for a few minutes before slicing and serving.