Cook your base: Make rice or quinoa according to package directions. Fluff and set aside.
Season the chicken: Pat dry.
Mix chili powder, smoked paprika, garlic powder, cumin, salt, and pepper. Rub onto chicken.
Cook the chicken: Grill over medium-high 5–7 minutes per side, or sear in a skillet with a little oil until cooked through. Internal temp should reach 165°F/74°C.
Sauce it: Brush or toss the hot chicken with BBQ sauce.
Let rest 5 minutes, then slice or dice.
Char the corn: In a hot skillet with a drizzle of oil, cook corn 4–6 minutes until some kernels are browned. Season with salt and a squeeze of lime.
Make the yogurt crema: Stir Greek yogurt, lime juice, chili powder, and a pinch of salt until smooth. Thin with a splash of water if needed.
Mix the street corn: In a bowl, combine corn, red onion, jalapeño (if using), cotija, and cilantro.
Add a spoonful of crema and toss lightly.
Assemble: Divide rice among bowls. Top with BBQ chicken, a generous scoop of street corn, and drizzle with more crema. Add avocado or hot sauce if you like.
Finish with freshness: Squeeze lime over the top and garnish with extra cilantro.