Season steak with garlic powder, onion powder, paprika, chili powder, cumin, salt, and pepper. Rub with olive oil.
Char corn.
Roast jalapeños and garlic bulbs.
Cook rice with cilantro, lime, and salt.
Cook black beans with garlic powder, onion powder, cilantro, and salt.
Prepare jalapeno garlic crema: blend roasted jalapeños, roasted garlic, lime juice, cilantro, olive oil, sour cream, and salt.
Prepare street corn: toss charred corn with lime juice, cotija cheese, red onion (optional), cilantro, salt, and olive oil.
Assemble bowls with steak, street corn, crema, rice, and beans.
