I usually have lunch out once a week, and on that day just have toast, or crumpets, or nothing at all, in the evening (note that for me 'nothing at all' is a pseudonym for no real food but does not exclude cake, biscuits, chocolate, bowl of cereal or fruit!).
Otherwise I generally cook and am mostly vegetarian but eat fish. I love salads with avocado and olives as well as the usual ingredients, in winter I make stews that last three days, and home made soups. However, having watched the latest Greg Wallace factory program, I am thinking of introducing more tinned food into my diet for health and economic reasons - Beans on toast, here I come! I must also confess to having discovered and become addicted to macaroni cheese from a small range of very healthy ready meals under the name of 'Amy's Kitchen' . So lazy as it is easy to make, but when I'm tired or miserable you can't beat a meal that just requires 5 minutes in the microwave - with a salad as above I can feel quite virtuous for very little effort.