Mix all the sauce ingredients until well combined. It should be fairly spicy.
Spread the sauce over the base of a flour tortilla, lay the sliced turkey on top of that, then the tomato, red onion and cheese. Season with salt and pepper. Place another tortilla on top of all of this and carefully move to a large non-stick pan.
Dry fry this until it starts toasting. Flip (you can use a plate to flip if it makes it easier) and cook the other side. I also put a lid on my frying pan which helps heat the quessadilla through.
Slice into 4 wedges, serve with a lime wedges and fresh coriander.