Ingredients Meat & Poultry Beef Recipes Ground Beef Recipes Birthday Meatloaf "Cake" 4.0 (5) Have some fun for your next birthday with meatloaf and mashed potatoes in the shape of a birthday cake. Close Credit: Krause, Johansen Yield: 10 to 12 Serves Serve up this kooky cake for a kids' birthday lunch. A slice reveals meatloaf layers beneath mashed-potato "icing" decorated with peas and carrots. Directions Preheat oven to 350 degrees. Coat two 9-by-2-inch round cake pans with cooking spray; set aside. Melt butter in a medium skillet over medium heat. Add onion, garlic, and celery; cook until softened, about 7 minutes. Transfer to a large bowl; let cool. Add beef, carrot, tomato sauce, Worcestershire sauce, egg, oats, ground mustard, salt, and pepper to bowl with vegetable mixture; mix thoroughly with your hands. Gently press into prepared pans. Bake until instant-read thermometer registers 160 degrees. about 25 minutes. Let stand 5 minutes; carefully remove with a spatula, and transfer to wire rack set over rimmed baking sheet. Tent with foil. Bring 2 cups water to boil in small pan. Add reserved carrot peels; cook until tender, about 1 minute. Using a slotted spoon, transfer to paper towels to drain. Place 1 meatloaf on platter; spread 1 cup warm mashed potatoes over top. Sprinkle with 3 tablespoons peas. Top with remaining meatloaf. Frost top and sides with 3 cups mashed potatoes. Fill piping bag fitted with a 1/2-inch star tip (such as Ateco #825) with remaining mashed potatoes. Pipe borders around cake. Using tip of a 1/4-inch plain round tip (such as Ateco #10), punch out circles from carrot peels. Decorate cake with carrot circles and remaining peas. Serve immediately. Cook's Notes The cakes can be prepared up to 1 day ahead: Reheat at 325 degrees; for 15 to 20 minutes, then make the frosting. Assemble just before serving.