In a small bowl, combine cumin, chili powder, garlic powder, and salt. Rub the spice mixture evenly over the steak strips.
Heat olive oil in a large cast-iron skillet over medium-high heat. Sear the steak for 3-4 minutes until browned and cooked to desired doneness.
In a large mixing bowl, fold the chopped cilantro and lime juice into the cooked white rice.
Divide the cilantro-lime rice into four equal meal prep containers.
Top each portion of rice with equal amounts of seared steak, black beans, and charred corn.
Garnish with fresh avocado slices and pico de gallo immediately before serving or storage.