This kielbasa and spinach frittata recipe is a delicious and filling meal that can be made using a food processor. Simply chop the potatoes and onions in the food processor, then cook them with sliced kielbasa and spinach in a skillet. Pour beaten eggs over the mixture, then bake in the oven until the eggs are set. Season with salt, pepper, and your favorite herbs for a delicious and satisfying frittata.