Breakfast Wrap with Banana Chilli Ketchup

I first made this for breakfast while staying in a hotel in Edinburgh that turned out to be a self-catering apartment. It takes a certain amount of planning to buy exactly enough food to sustain two adults for three days, wasting nothing, when your only shopping options are the Harvey Nichols food hall (ineffectual, expensive, but fun to walk around gasping at), or a Sainsbury’s Local, where fruit and veg are sold in large packets and nothing by the gram. I found a banana h