thanks for the input everyone! I do have a bento box (check out Laptop Lunches for bento boxes). There are awesome photo streams on Flikr for bento ideas. So many of them though have to be modified to take out the stuff that us renal patients shouldn't have.
I think the biggest issue for me with lunch is remembering to make it. I like to sleep in as long as possible and if I don't make my lunch while I'm cleaning up the dinner dishes, then I'm toast. But now that I am on NxStage and doing my dialysis at home, I think that cooking and cleaning up afterwards will be a lot less of a struggle. I can get dinner cooked, eaten and cleaned up while the machine is doing its thing as far as setup goes.
I found a good recipe for a Cobb salad on allrecipes.com - I think I'm going to give that a try for next week. I can make up all of the ingredients on Sunday, keep them in individual containers and then throw together a batch each night to keep things from getting yucky if I threw it all together at once. I just have to boil some eggs and either pick up a rotisserie chicken or cook some chicken myself and then I'm halfway there.
Tuna salad sandwich. Chicken salad sandwich. All kinds of salads.
Look into bentos. You might not want to follow the whole bento lifestyle/planning in terms of having little bits of things, but look at examples and you might get ideas. Rice-with-stuff is always good for lunch.