Whisk together the beer, orange juice, hoisin, mirin, soy, Worcestershire, Sriracha and sesame oil. Stir in the garlic and onions.
Place the steaks in a large baking dish and pour the marinade over top. Marinate at least 30 minutes, or up to overnight in the fridge.
Preheat a grill pan or grill over high heat.
Remove the steaks from the marinade, shaking off any excess. Discard the marinade. Grill the steaks for about 6 minutes per side for medium-rare. Let the steaks rest for 5 minutes before slicing. Slice into thin slices across the grain and transfer to a serving plate. Sprinkle sesame seeds on top and serve.
This recipe was created by a contestant during a cooking competition. It has not been tested for home use.