Place the meat in a large bowl.
Grate half of the onion into the meat. Chop the remaining half and reserve for topping the burgers.
Add the Worcestershire sauce, chipotles and adobo, and steak seasoning.
Add a splash of oil. Mix well then divide into 4 patties.
Fire up your grill.
Cook the burgers and toast the buns, as desired.
Serve the burgers topped with cheese, the tomato sauce, and chopped onion.