like hamburgers. Pastrami Burgers. Butter Burgers. Nut Burgers. Fried Onion Burgers. The Connecticut Steamed Cheeseburger. The Mississippi Slugburger. The Frita Cubana. The Juicy Lucy. And then there is the question of toppings, sides, condiments. To tomato or not to tomato. And ketchup. Don't get me started about ketchup...