In a large mixing bowl, combine shredded chicken, diced avocado, cheese, cilantro, yogurt, lime juice, garlic powder, and cumin.
Incorporate ingredients gently using a folding motion to maintain avocado cube integrity while ensuring uniform spice distribution.
Place 25% of the chicken mixture onto the center of each flour tortilla.
Fold the lateral edges of the tortilla inward by approximately 2 inches, then roll from the proximal edge to the distal edge to form a tight cylinder.
Preheat a heavy-bottomed skillet or cast iron pan over medium heat and apply a thin film of oil.
Place burritos in the skillet with the seam side facing down to facilitate heat-sealing.
Cook for 120-180 seconds per side until the external surface achieves a golden-brown hue and internal cheese reaches its melting point.
Remove from heat and let rest for 60 seconds before slicing diagonally to serve.