For the Hash Brown Crust:
– 3 cups frozen hash browns, thawed and excess moisture squeezed out

For the Quiche Filling:
– 3 slices bacon, chopped
– 1 package baby spinach
– 1/2 cup diced bell peppers
– 2 cloves garlic, minced
– 1/4 cup diced onion
– 6 large eggs
– 1/2 cup whole milk
– 1 1/2 cups shredded Gruyere cheese
– 3 tablespoons butter
– 1/4 teaspoon black pepper
– 1 pinch nutmeg
– 1/2 teaspoon salt, divided