Savory Royal Pie from Pleasant House Bakery. Single Serving. Made with mushrooms, kale, scallions, white wine, herbs and parmesan. Heating instructions: Pies are fully cooked. Simply preheat your oven or toaster oven to 350 degrees, place your Royal Pie on a cookie sheet or rack, uncovered, and bake from 20 to 40 minutes (times will vary by oven). Frozen.