– 3 cups chilled mashed potatoes
– 1 large egg
– 1 cup shredded cheddar cheese
– 1/4 cup chopped chives
– 1/4 cup all-purpose flour
– 1/2 teaspoon garlic powder
– Salt and pepper to taste
– 1/2 cup grated Parmesan cheese, for rolling
– Cooking spray or butter for greasing