I know this sounds a little obvious, but the more boring meals become, the less likely we stick to a healthy food plan. Chicken breast and fish can be sooooooooo boring after awhile. Add spices and herbs! (fresh and dried). Change it up to change the tastes. Watch the salt however.
I also love to use cayenne pepper sauce. Don't let yourself get too hungry. Pace your meals to stay full. Also, try to eat the same time every day and pay attention to your hunger signals. If your an emotional eater, like me, these signals are essential to success.