I'll be grilling the usual suspects for work, Costco frozen burgers, hot dogs, brats. To be honest I've only grilled frozen burgers once or twice before and I had no idea what I was doing. I still don't know what I'm doing lol. Now that I'm apart of this super knowledge club I figure I can just ask the experts! So what is the best way to grill frozen burgers? I'll have several kettles going each cooking their own thing just because I can lol, and to not spend the entire time cooking on just one kettle. My brief googling turned up not that helpful instructions of "heat up grill, flip every few minutes". How hot? Lid on? Direct vs indirect? Thanks in advance for the help!