There have been wonderful suggestions. Everyone is different good thing there are so many food options. 
I eat six small meals a day. My favourite book is Body For Life For Women. I need to keep my blood sugar happy and once I decided to actually listen to my doctor and do this, plus add in exercise, I dropped 60+ overall inches (fat, fat, fat), gained muscle (yay) and shed almost 70 pounds. (YAY ME!) It took me a year and a half, no quick fixes. Now I am healthier than I have ever been and loving every minute of it!
Now I just work on maintaining my weight and increasing my lean muscle mass.
I went from a size 20
to a size 6!
I am extra proud, since I did it by myself. 
FWIW-I did not overeat when I was big. Quite the opposite. I was never hungry. I would not eat until about 1pm or so after being up almost 8 hours! My metabolism had completely shut down, and it was a bugger to get it jump started again.
Now I am happily running, hopefully cycling outdoors as soon as I get the all clear from my neurologist and looking forward to my TNT training AND my goal to partcipate in a Tri before I am 40!
Jennifer
“Live as if you were to die tomorrow. Learn as if you were to live forever.”
-Mahatma Gandhi
"We are what we repeatedly do. Excellence, therefore, is not an act but a habit."
-Aristotle