The variety of "healthy" boggles the mind - my grandparents eat nothing but red meat, salt and starchy foods and are slim and far more active than I into their 80s. They have no major health problems to report.
I avoid red meat in general, but do enjoy it still moo-ing on my plate once or twice a month. For me, "healthy" means variety - all kinds of variety. A variety of protein, some lean, some not, a variety of grains - whole in general, very occasionally not, a huge variety of vegetables, sometimes raw, sometimes not, a variety of fats but sparingly, and alcohol, regularly but in extreme moderation. (ONE?! Whaddya mean ONE drink?)
My plan clearly wouldn't work for everyone. The trick is making it work for me.
I think, in general, that for me, "healthy" eating means happy eating. Let's face it - I wasn't happy eating huge amounts of unhealthy food. Now I'm constantly striving for real happiness - and who knew I'd find it in sage pose, after a morning of portion-controlled whole wheat waffle and peanut butter?