Preheat your oven to 350°F and grab a 9x13 baking dish. Season the chicken breasts with salt and pepper on both sides. Heat olive oil in a large skillet over medium-high heat and sear the chicken for 5-6 minutes per side until golden (it won't be fully cooked yet—that's fine). Remove to a plate and let it cool slightly.

In the same skillet, sauté the diced onion over medium heat for 3 minutes until it softens. Add minced garlic and cook for 1 minute more until fragrant. Stir in chili powder, cumin, smoked paprika, and black pepper—you'll smell how amazing this gets immediately.

Shred the cooled chicken using two forks or your hands—it should pull apart easily. Add it back to the skillet with the spice mixture and toss everything together. Fold in the black beans, corn kernels, and 1 cup of the shredded cheese until combined.

Warm the tortillas briefly in a dry skillet for about 10 seconds per side so they're pliable. This makes rolling way easier and prevents cracking. Don't skip this part—I learned that the hard way when my first batch fell apart.

Spread a thin layer of sour cream on the bottom of your baking dish. Take each warm tortilla and fill it with about 3 tablespoons of the chicken mixture, then roll it tightly and place seam-side down in the dish.

Once all 12 tortillas are rolled and nestled in the baking dish, drizzle the remaining sour cream over the top. Sprinkle the remaining 1 cup of cheese across everything—don't be shy here. This is where the magic happens.

Bake uncovered at 350°F for 35-40 minutes until the cheese bubbles and gets golden brown on top. Keep an eye on it after minute 35 because ovens vary. Let it rest for 5 minutes before serving, then top with fresh cilantro and lime wedges.