In a large skillet, heat the olive oil over medium-high heat. Season the sliced flank steak with garlic powder, onion powder, chili powder, salt, and pepper. Add the steak to the skillet and cook for about 4-5 minutes, or until browned and cooked to your desired level of doneness. Remove from heat and set aside.
In a separate pot, heat the queso cheese sauce over low heat until warm, stirring occasionally.
In serving bowls, layer the cooked white rice, followed by the black beans, corn, and diced tomatoes.
Top each bowl with the cooked steak and drizzle with warm queso cheese sauce.
Finish with diced avocado and a sprinkle of fresh cilantro. Serve with lime wedges on the side for squeezing over the top.