I think the issue here is that the theatre was in (hushed tones)….Watford so whilst Chipotle has been in London for years I suspect this may be a new venture in Watford.Chipotle has been in London for years. I love it, but it can be a calorie bomb (avo, sour cream, cheese). I think we can assume she goes for the blandest (and cheapest!) option possible: lettuce, plain salsa and a sprinkling of corn (hold the wrap).
The location may also explain why Ben had to escort the pair of them on the ‘date’!!