Make the Chipotle Marinade: Toast cumin and coriander, then grind with garlic, shallots, and a bit of salt. Add cilantro stalks, chipotle peppers, black pepper, soy sauce, lime juice, and gradually mix in avocado oil to emulsify.
Marinate the Steak: Marinate the flap steak with a third of the marinade for 2-3 hours or overnight for best results.
Cook the Rice: Rinse rice until water runs clear. Cook in chicken stock with a measurement technique using your finger for the water level. Finish with butter for flavor.
Prepare Pico de Gallo: Combine diced tomatoes, red onion, jalapeno, cilantro, lime juice, salt, and optional olive oil.
Make Cabbage and Lime Salad: Thinly slice cabbage, toss with lime juice, salt, and a touch of olive oil.
Cook the Steak: Grill marinated steak on a preheated grill pan, then finish in a 375°F oven to desired doneness. Let rest, then slice.
Assemble the Burrito Bowl: Layer rice, beans, steak, pico de gallo, and cabbage salad. Top with additional marinade used as salsa.