Season the chicken with salt, pepper, cumin, chili powder, and paprika. Give it a little massage of spice and set aside.
Heat a splash of olive oil in a skillet over medium heat. Cook the chicken until it’s cooked through and nicely browned, about 6–8 minutes per side depending on thickness. Rest 5 minutes, then slice.
While the chicken rests, warm the beans and corn in a separate pot or microwave until hot. Fluff the rice if needed and season lightly.
In a big bowl, layer rice, beans, corn, peppers, and onions. Top with sliced chicken and tomatoes or salsa.
Finish with avocado slices, cilantro, and a squeeze of lime juice. Taste and adjust with salt or extra lime if you’re feeling feisty.