The next time you plan to cook burgers for a crowd, up the ante in a big way with this buffalo burger recipe. Buffalo Burger with Spicy Ketchup includes Napa cabbage and eggs, resulting in a delightful take on the traditional burger. This recipe calls for spicy ketchup, so feel free to use store-bought or whip up your own batch of homemade spicy ketchup. This dinner recipe for four people is one you'll want to use again and again this summer. If you've never purchased buffalo meat before, then pay a visit to your favorite local butcher shop.