This is a great list of foods to have on hand published by Weight Watchers. I would say that my house has all of these at any given time except the lean ground beef and chicken...though there is usually chicken in the house once or twice a week.
Also, I have been living on frozen vegetables and chicken sausage this week. Throw a good heap of mixed frozen veggies (I like the Bird's Eye Broccoli Stir-Fry blend) in a pan with a little oil, slice an Al Fresco Chicken Sausage Link up, toss in pan. Season. Cook until done. Easy.
Here is the link if you didn't catch it above: http://www.weightwatchers.com/util/art/index_art.aspx?tabnum=1&art_id=43331