For breakfast, some fruit if I'm feeling healthy. A bacon or sausage bap if I'm not.

For lunch, chicken or prawn sandwich from a local deli most of the time. If I have money I'll go for lunch to a bar or restaurant with friends.

For dinner, pasta and tuna (so cheap and easy to make) or a pizza if I'm lazy. I try to avoid takeout but working late means this can easily happen.