help

im a mother of 4 n trying to lose weight to feel good about myself ... i have some medical issues w my back,hips n knees so im kinda limited to what i can do for exercise. i try to work out 6 days a week doing areo pilates n elliptical, n just started circuit workouts. im a very picky eater.... i would love some examples of what to eat n/or little ways to change what i like to eat but just in a healther way....PLEASE n THANK U