In a large bowl use hands to gently combine ground beef, panko breadcrumbs, Worcestershire sauce, cumin, salt and pepper. Add a splash of milk until moist but make sure you can still make firm patties. Form into 4 patties.

Preheat oven to 350 to toast rolls.

In a large (preferably cast-iron) skillet melt butter on med-low heat. Cook burgers in skillet for about 8 minutes. Flip burgers and cook for an additional 5-minutes, until burgers are not quite done. Add cheese and continue to cook until cheese is melted and burgers are fully cooked, about 5 minutes until internal temperature reaches at least 160 degrees.

While cheese is melting place rolls in oven until toasted, about 5 minutes.

Assemble burgers by topping with onion rings and your favorite sauce. Serve immediately with cold beer*!