[timj219]

I like the way Michael Pollan (Omnivore's Dilemma) put it.
"Eat food. Not too much. Mostly plants"

Seriously though I don't think you can go wrong with any kind of seasoned sauteed vegetables over brown rice. The addition of beans or small amounts of eggs, fish, or meat will get you your protein without too much fat. Add fruit for dessert and oatmeal for breakfast and you can't get much healthier. If the diet is for weight loss purposes only then exercise will be more important than any diet IMO.