Crispy Potato Pancakes from Mashed Potatoes - Gimme Recipe

Ingredients

• 2 cups of leftover mashed potatoes
• 1 large egg
• 1/4 cup of all-purpose flour
• 1/4 cup of finely chopped green onions (optional)
• 1/4 cup of shredded cheese (optional)
• Salt and pepper to taste
• 2-3 tablespoons of vegetable oil or butter (for frying)