Warm the pan: Heat olive oil in a large skillet over medium. Add onion and bell pepper. Cook 4–5 minutes until softened and lightly golden.
Add aromatics: Stir in garlic.
Cook 30 seconds until fragrant. If using garlic powder, add it with the taco seasoning in the next step.
Season and build: Add chicken, black beans, corn, diced tomatoes with juices, taco seasoning, salt, pepper, and hot sauce if using. Stir well.
Choose your rice path: Using uncooked quick-cook rice: Stir in rice and chicken broth.
Bring to a gentle boil, then reduce heat to low. Cover and simmer 12–15 minutes, until rice is tender and most liquid is absorbed. Stir once or twice to prevent sticking.
Using cooked rice: Reduce broth to 1/2 cup.
Stir in cooked rice and broth. Simmer uncovered 3–5 minutes, stirring, until heated through and saucy.
Finish with lime and cheese: Turn off heat. Squeeze in lime juice and taste; adjust salt, pepper, or heat.
Sprinkle cheese over the top. Cover for 2–3 minutes to melt.
Garnish and serve: Top with cilantro. Spoon into bowls, roll into warm tortillas, or serve over shredded lettuce.
Add sour cream, avocado, and salsa if you like.