Broccoli, cheddar and mashed potato quiche

9-inch refrigerated pie crust, or homemade crust

small onion, finely chopped

broccoli florets, finely chopped

leftover mashed potatoes

large eggs

lowfat or nonfat milk

fresh thyme leaves, or 1 tsp dried thyme

Kosher salt and black pepper

shredded Cheddar cheese (I use store-bought low-fat cheese)