To a small bowl, add the chili powder, garlic powder, onion powder, cumin, and salt. Stir together to combine.
Add the shrimp to a medium bowl. Spray with cooking oil, then add the seasoning. Stir to coat the shrimp in the seasonings.
Heat a frying pan over medium heat. Spray with cooking oil, then add the shrimp in a single layer. Cook the shrimp for 2-3 minutes on each side.
Once the shrimp is flipped, add the lime juice.
Assemble the two bowls by adding half of the shrimp, 1/3 cup rice, black beans, corn, grape tomatoes, red onion, and cilantro.
In a small bowl, mix the light mayonnaise and sriracha. Add half of the sauce to each bowl.