As much as I do not like this place as much when it first came out, this location did a good job in fulfilling a large order. Located in the busy plaza across from UNLV, I strongly suggest ordering ahead of time for pick up. You could use the mobile app or online, but either way preordering is best to get your food on time. If you need to order for pick up the next day, you can start your order the day of, customize your oder(s), and then submit it the next day. You can't place the order for a future date is my point, but at least you can get the order started and then just hit submit the day of your actual pick up.
They don't have an "adult" quesadilla on their menu. They have a kid's meal quesadilla on their site. So, if you want a quesadilla you have to click on burrito and then pick only cheese (and chicken if you want), but then they roll it up like a burrito...kind of weird, but close enough. Would recommend.