Preheat your Yoder Smokers YS640 pellet grill to 375ºF, set up for direct grilling (no diffuser plate/door). Place Lodge 12” Cast Iron Skillet on the main cooking grate, near the flame, to preheat.
When the skillet is hot, add your ground beef and onion. Cook until the beef is browned and the onions are softened and translucent.
Add the tomatoes, Firebug Hot Grillin’ Sauce, Big Rick’s Jalapeño Honey Mustard and Plowboys BBQ Yardbird Rub. Break up the tomatoes with a wooden spoon, and cook, stirring occasionally until thickened to your desired consistency.