There are a few ways you can grill these. First, set a cast-iron skillet on your grill grate (gas or charcoal) and cook the burgers in the skillet. You can also cook the burgers on a piece of foil placed on top of the grill grates. u003cbr/u003eu003cbr/u003eIf you want to cook them right on the grill gate (you rebel, you), brush the grates clean really well. Then oil the grates using an oil-soaked bunch of paper towels and a pair of tongs. Spritz the surface of the burgers lightly with nonstick spray before placing them on the grill.u003cbr/u003eu003cbr/u003eAnd finally, don’t flip them until they readily release on their own from the grill grate. Together, these steps should keep the burgers from sticking to the grate.