Are these sweet or savory cupcakes? Surprise your kiddos with these delicious Meatloaf Cupcakes and make sure you have your phone ready to capture their epic reactions when they take their first bite. You can bake these mini meat cakes in cupcake wrappers or without. If you use lean ground beef, you can opt for baking them in the wrappers. If you use fattier ground beef, you should bake them directly in the muffin tin, drain off the fat and then transfer them into a cupcake wrapper.