Cheesy Spinach, Mushroom & Feta Quiche

Name: Cheesy Spinach, Mushroom & Feta Quiche
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: European, Mediterranean, French, Greek
Ingredients: 1 pie crust (homemade or store-bought short-crust pastry); 10 g butter; 1 tsp crushed garlic; 2 cups about 6-8 large button mushrooms sliced; 4 eggs; 1 cup milk; 1 cup spinach leaves (chopped); 1/2 cup 100g feta cheese; 1/2 cup grated cheese (I used tasty); 1 TBSP chopped fresh herbs (parsley, thyme, rosemary etc); Salt & pepper