01 - Preheat the oven to 200°C.
02 - Arrange two large sheets of aluminum foil on a clean, flat work surface.
03 - Place the chicken breasts on a cutting board and drizzle both sides with olive oil.
04 - Sprinkle chili powder, garlic powder, ground cumin, paprika, salt, and black pepper evenly over both sides of the chicken breasts.
05 - Rub the seasonings and oil into the chicken for even coverage.
06 - Place each chicken breast in the center of a separate sheet of prepared foil.
07 - Evenly layer corn kernels, black beans, diced tomatoes, red onion, bell pepper, and top each portion with 1/4 cup shredded cheddar cheese over the chicken breasts.
08 - Fold the sides and ends of the foil over the chicken and vegetables to create tightly sealed packets.
09 - Transfer the foil packets onto a baking sheet and bake in the preheated oven for 25–30 minutes, until the chicken reaches 75°C internal temperature.
10 - While the chicken bakes, heat tortillas in a dry skillet over medium heat for 30 seconds per side until warmed and pliable.
11 - Remove packets from the oven and open them carefully to avoid steam burns. Drizzle with lime juice and sprinkle with chopped cilantro.
12 - Transfer each chicken breast with its toppings onto a warm tortilla and serve immediately.