Simplicity was important for me. I started with just getting breakfast right: something I like, that's healthy, every day. Boring, but I can do it.

Once you have that nailed, do something similar for lunches.

This plan doesn't account for nutritional needs at all. It's just something I can do.

Edit: meals you can make in a slow cooker or large pot are ideal. I turn the temperature off low and can take breaks to play computer games or whatever to break things up. Once I've everything chopped and added, I turn on the heat. It takes me quite a while this way, but I can make enough for a few days.