Holy Shiitake. Holy shiitake, this is the ultimate flavor bomb! This seasoning was designed to enhance the natural flavors of your burger with shiitake mushrooms, toasty brown butter, soy sauce, onion and other tasty spices. You’ll want to try it on steak and veggies too! Great on burgers, but also try on: Steaks, Chicken, Roasted Veggies, or Meatballs