Mix together grated quarter of a pear, 2 garlic cloves, 3 T soy sauce, 1 tsp red pepper flakes, 1 T ginger, 1 T brown sugar, 1 T sesame oil, and 1 tsp oyster sauce in medium mixing bowl. Add 1 lb sliced beef, and let sit out for at least 15 minutes.
While beef is marinating, cook 4-6 oz noodles (&/or) 1 c rice according to package directions.
Make Korean BBQ sauces by mixing together 1/2 c BBQ sauce, 1 T oyster sauce, 2 tsp rice vinegar, 1 tsp ginger powder, and 1 tsp sesame oil. Set aside. Mix together 1tsp + sriracha and 1/2 c mayo, set aside.
After about 15 minutes, heat up grill or medium skillet. Cook beef until desired doneness. Cook at least 3 minutes on each side. Pour remaining marinade over beef as it's cooking.
Rinse noodles well after cooking. Add grains to bowl then layer in cabbage, beef, sauces last. Enjoy.