I used to have ready meals loads when I was working silly hours and out and about all over the place.
I gradually stopped, mainly when I had gallbladder problems and I was on a very low fat diet and was horrified how much fat was in most of them, even the ones which are meant to be better for you. I've not gone back on them since save the very odd occasion (usually a rare curry treat as I can't make my own that nice).
If I want to have something quick to eat I tend to have soup, sandwich, wrap etc... maybe the occasional tin of Heinz Ravioli or Spaghetti hoops if I want something warm.
I don't tend to have many cooked meals though, that said. Don't have the energy to cook a lot of nights but don't want to go back to ready meals. I like sandwiches etc... though so happy enough.