I think that, compared to typical PB, you must be high on protein and low on fat. The only time I see the words "lean beef" around here are when they're followed by "...sauted in butter" 
I also seem to remember green beans weren't considered an ideal vegetable (though I could be wrong on that).
Here's what I recall from reading the PB book: Concentrate on keeping insulin low to lose weight. If you overdo either carbs OR protein, you will produce excessive insulin. Fat is the only food source that is insulin-neutral.
Liz.
Zone diet on and off for several years....worked, but too much focus on exact meal composition
Primal since July 2010...skinniest I've ever been and the least stressed about food