In a medium bowl, combine the pureed chipotle peppers, minced garlic, cumin, oregano, and 1 tablespoon of oil to create a marinade.
Coat the steak thoroughly in the marinade and allow it to sit for at least 30 minutes at room temperature.
Rinse the rice and combine with water in a pot; bring to a boil, then simmer covered for 15 minutes. Stir in lime juice and cilantro once cooked.
Heat the black beans in a small saucepan over medium heat with a splash of water and a pinch of salt.
Heat the remaining 1 tablespoon of oil in a heavy skillet or cast iron pan over high heat. Sear the steak for 4 minutes per side for medium-rare.
Transfer the steak to a cutting board and rest for 5 minutes before dicing into 0.5-inch cubes.
Assemble the bowls by layering rice, beans, and steak, then topping with lettuce, cheese, pico de gallo, guacamole, and sour cream.