Corned Beef Hash Cakes (8 servings) 1 cup shredded cooked corned beef 2 cups mashed potatoes 1 small onion -- chopped 1 tablespoon vegetable oil salt and pepper to taste Heat vegetable oil in a large skillet over medium heat. Fry onion in oil until translucent. Transfer to a medium bowl, and mix with mashed potatoes and corned beef. Season with salt and pepper. Form into 8 patties. Fry patties in the skillet over medium-high heat until golden brown on both sides. This is a great side dish everyone in my family loves! Mr Breakfast would like to thank IrishGirl for this recipe. Recipe number 1051. Submitted 8/28/2003.