Prep the filling: In a medium bowl, combine shredded chicken, Greek yogurt, salsa, taco seasoning, garlic powder, onion powder, cilantro, and a pinch of salt and pepper. Mix until evenly coated.
If it looks too wet, add a little more chicken or cheese.
Warm the tortillas briefly to make them pliable. You can stack and microwave them for 20–30 seconds or heat them in a dry skillet for a few seconds per side.
Assemble the minis: On each tortilla, sprinkle a tablespoon of cheese on one half, add a heaping tablespoon of chicken mixture, then top with another tablespoon of cheese. Fold over into a half-moon.
Press gently to seal.
Cook on the stovetop: Heat a large nonstick skillet over medium heat with a light film of oil. Place quesadillas in a single layer. Cook 2–3 minutes per side, until golden and the cheese is melted.
Work in batches if needed.
Alternative: Air fryer: Brush both sides lightly with oil. Air fry at 375°F (190°C) for 5–7 minutes, flipping halfway, until crisp and melty.
Alternative: Oven: Preheat to 425°F (220°C). Place quesadillas on a parchment-lined sheet, brush tops with a little oil, and bake 8–10 minutes, flipping once, until edges are crisp.
Rest and slice: Let them sit 2 minutes so the cheese sets slightly.
Slice if desired and serve with salsa, hot sauce, or a dollop of Greek yogurt.