No-cook meals

A lot of ready meals don't need cooking. I had a tuna,sweetcorn and pre cooked rice straight cold  from the container today. Baked beans can be eaten cold as with most tinned goods?
Do as the long distance lorry drivers do and just take the labels off the tins, then pick three tins and mix together!  Would make for interesting meals!

As an aside, I can't stand tinned tomatoes heated and always eat them cold.