In a large mixing bowl, combine the diced grilled chicken, cooked brown rice, black beans, thawed corn, shredded cheddar cheese, and chipotle ranch dressing. Season the mixture with salt and freshly ground black pepper to your liking. Stir well until all ingredients are thoroughly combined and coated in the dressing.
On a clean, flat surface, lay out the flour tortillas. In the center of each tortilla, spoon a generous portion of the chicken and rice mixture, ensuring to leave about 2 inches of space around the edges for folding.
Top the filling with a few slices of creamy avocado and a sprinkle of the freshly chopped cilantro for added flavor and freshness.
To form the burritos, fold in the sides of each tortilla over the filling, then starting from the bottom edge, roll the tortilla up tightly to enclose the filling completely, ensuring it is sealed securely.
Preheat a skillet over medium heat. Once hot, place the burritos seam-side down onto the skillet. Cook for about 3-4 minutes on each side, or until the tortillas are crispy and beautifully golden brown.
Carefully remove the burritos from the skillet and allow them to rest for about a minute. For easier consumption, slice each burrito in half if desired.
Serve the burritos warm, alongside fresh lime wedges for an added burst of refreshing zest!