Place rack in top third of oven, add sheet pan + preheat oven to 475°; peel (or don't peel!) potato, cut into ½-inch sticks, mix with 2 tbsp oil + salt/pep; carefully remove hot pan from oven, spread fries onto pan + bake 15 min; flip fries over, reduce heat to 425° + bake 10-15 min more until golden; serve on the side

Meanwhile heat a skillet over med-high heat, pour chicken + juice into pan, break up chicken, sear 2 min, flip + heat 2-3 more until warmed + browned

Cut onion in half from root to stem, peel + thinly slice ½ (or whole) of onion

Divide fillings between 4 wraps then drizzle on 1-2 tbsp tzatziki