Mix the seasoning: In a small bowl, combine chili powder, cumin, smoked paprika, oregano, cayenne (if using), salt, and pepper. Set aside.
Prep the chicken: Pat chicken dry and slice into thin strips. Toss with half the spice mix, half the lime juice, 1 tablespoon olive oil, and the minced garlic.
Let it sit while you prep the veggies.
Slice the veggies: Cut peppers and onion into even strips for quick, uniform cooking.
Cook the chicken: Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Add chicken in a single layer and cook 4–6 minutes, stirring once or twice, until browned and cooked through. Transfer to a plate.
Sauté the veggies: In the same skillet, add another 1 tablespoon olive oil.
Add peppers and onion, sprinkle with the remaining spice mix, and cook 5–7 minutes until tender-crisp with some charred edges. Squeeze in a little lime juice.
Warm the beans and corn (optional): In a small pan or microwave-safe bowl, warm the beans and corn with a pinch of salt and squeeze of lime.
Build the bowls: Add rice, quinoa, or greens to each bowl. Top with chicken, sautéed peppers and onions, beans, and corn.
Add toppings: Finish with avocado, pico or salsa, cilantro, jalapeños, Greek yogurt or sour cream, cheese, and a drizzle of hot sauce.
Taste and add more lime if needed.
Serve: Enjoy right away while it’s warm and the veggies are still crisp-tender.