Hey Chomp, just a couple of questions before I get into any suggestions.
Why 1400 cal/day?
Why 5 meals a day?
Would you prefer to eat a meal instead of having a shake for dinner?
Also, if you dont mind what are your stats and goals, I mean besides wanting to lose 40 pounds. How long do you expect it to take you to lose that weight with your current plan?
Hope some of us can help here. I am sure we can just need to need a little more to give better info. One of my favorite fitness writers recently said "In all my research there is only one food that will make you fat: Too much" so you may not need to think about what is best and what needs to be avoided. Just what fits into your plan.