To make a transformed spinach mushroom quiche recipe, first you need to prepare the ingredients. First, you'll need the following ingredients: 1 pound chopped spinach 1 cup chopped mushrooms 2 tablespoons butter 2 tbsp. kosher salt 1 tablespoon thyme 1 teaspoon paprika 14 teaspoon cayenne pepper Instructions: Preheat the oven to 375 degrees F (190 degrees C) and grease and flour two 9-inch pie pans. Place the spinach and mushrooms in the bottom of the greased pan and sprinkle with the salt and pepper. Bake the quiches for 20 to 25 minutes or until the cheese has melted and the mushrooms are lightly browned. Remove from oven and let sit for 5 minutes before serving.