- 2 cups mashed potatoes (preferably cooled)
- 1 1/2 cups shredded cheddar cheese (or your favorite cheese)
- 1/4 cup grated Parmesan cheese
- 1/4 cup green onions, chopped (optional for added flavor)
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- Salt and pepper, to taste
- 1 large egg
- 1/2 cup breadcrumbs (panko works best for extra crispiness)
- 2 tablespoons unsalted butter (melted, for brushing)
- Fresh parsley (optional, for garnish)