I lost 40 pounds in 3.5 months.
Breakfast - Bowl of Kashi go Lean (has protein - fills you up for longer)
Lunch - Carrot, Red Pepper, Apple, Piece of celery and a whole wheat sandwhich (or melba toast) with either egg salad, tuna or cream cheese.
Supper - 1 plate of whatever is being served. No doubles, no snacking between meals unless it's a fruit or vegetable.
The supper part helps because you don't feel like you're being deprived of anything because you're not. The point is, eat very healthy the rest of the day, and eat whatever you want in limited quantities for supper.
Drank many cups of water a day and didn't exercise at all.