i love eating all types of hamburgers,  A hamburger, beefburger or burger is a sandwich consisting of one or more cooked patties usually made from ground beef
I love hamburgers too! they are my fave, What kind of toppings do you usually put on yours? 
i usually only put onion chesse and tomatoes,  The patty may be pan fried, barbecued, or flame broiled
I like mine flame broiled, it tastes so much better that way. When was the burger invented anyway? 
The term "hamburger" originally derives from Hamburg, Germany's second-largest city but im not sure where it was invented
Oh wow it came from Germany! I had no idea, I always thought it was purely an American food. 
A hamburger topped with cheese is called a cheeseburger and that is my favorite burger
Me too, cant ever have one without the cheese, it just wouldnt taste right. Are burgers just made from beef usually, or so other countries have different meats for their burgers? 
im not sure bot some people like  condiments such as mustard, mayonnaise, ketchup, relish, or "special sauce" 
Speaking of special sauce, I hear McDonald's has special sauce on their big macs, Do you know whats in it?