For the beef: Combine the soy sauce, sugar, vinegar, fish sauce, garlic, ginger and jalapeño in a bowl and mix well to dissolve the sugar. Add the beef and mix well. Chill and reserve until ready to cook the beef.
For the pickled daikon and carrots: Combine the vinegar, sugar, carrots and daikon. Chill and reserve.
For the Korean BBQ sauce: In a deep saucepot, sauté garlic, ginger and jalapeño in oil until fragrant. Add gochujang and toast, stirring frequently, 1 to 2 more minutes. Add sugar, vinegar, soy sauce and 2 cups water. Bring to a boil and turn down to a simmer. Let simmer about 10 minutes. Remove from heat and add sesame oil. Reserve and chill.
For the burritos: Heat a large heavy frying pan and add ground beef. Flatten with a spatula and let meat get charred on 1 side. Flip and cook on the other side, breaking up meat with spatula. Add the cooked brown rice and fry with meat and all its fat. Remove from heat and reserve.
Spoon beef and rice mixture over tortillas. Add half a sliced avocado to each burrito, layer on pickled daikon and carrots, kimchi, fresh torn mint and cilantro and a generous bit of BBQ sauce. Wrap and enjoy.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.