To grill the yakiniku meat, preheat a grill or grill pan to medium-high heat. If using a grill pan, make sure it is well-oiled to prevent sticking. Remove the meat from the marinade and shake off any excess sauce. Place the meat on the grill and cook for about 2-3 minutes per side, or until it reaches your desired level of doneness. The thin slices of meat cook quickly, so be careful not to overcook them. Once cooked, transfer the grilled meat to a plate and let it rest for a few minutes before serving. This allows the juices to redistribute and the meat to become tender. Serve the yakiniku meat with steamed rice, a side of vegetables, and extra yakiniku sauce for dipping. Enjoy the delicious flavors of homemade yakiniku!