This savory deep-dish pie features herbed feta cheese that melts and mingles in every bite. The cheese is sauteed and mixed with spinach, mushrooms, Cheddar cheese and lots of garlic. This mixture is then combined with milk and eggs, and poured into a prepared crust. A bit more Cheddar cheese is sprinkled over the top, and then the quiche is slipped into the oven until it 's set.
Preheat oven to 375 degrees F (190 degrees C). Cook pie crust until slightly browned, about 5 minutes. Take out of oven to cool.
Melt butter over medium heat in saute pan. Add onion & mushroom and cook until slightly browned, then add garlic. Cook one extra minute. Stir in spinach, chicken boullion, cottage cheese and 3/4 of Cheddar cheese. Season with salt and pepper. Spoon mixture into cooled pie crust.
In a medium bowl, whisk together eggs and milk. Season with salt and pepper. Pour into the pastry shell, allowing egg mixture to thoroughly combine with spinach mixture.
Bake in preheated oven for 15 minutes. Sprinkle top with remaining Cheddar cheese, and bake an additional 35 to 40 minutes, until set in center. Allow to stand 10 minutes before serving.