I do it fairly often. I don't do it in a deliberate way, I just cook what I'm going to eat one night in a much bigger portion, 3 or 4 meals worth, then put the remains in takeaway containers (you probably don't get them, our takeaways come in small plastic tubs) and freeze them. I then just cook rise, pasta or vegetables on the night I'm going to eat it.
I also find keeping lots of chopped tomato's, garlic, rice, pasta and other common ingredients around helps. I try to pick up a premade pasta bake sauce or two whenever I'm in the supermarket for when I run out of food / can't be bothered cooking.