Mix chicken, buffalo sauce, cream cheese, shredded cheese, dressing, and garlic powder until evenly combined.
Warm tortillas briefly so they’re pliable. Spoon ~2 tablespoons filling down each tortilla and roll tightly.
Place taquitos seam-side down on a baking sheet lined with parchment. Spray or brush lightly with oil.
Bake at 400°F for 12–15 minutes until crisp, flipping once for even browning.
To freeze: flash-freeze on the sheet 1 hour, transfer to a freezer bag. Reheat frozen taquitos at 400°F for 18–22 minutes.