Time for another edition of Smart Nutrition. Here’s a question that has puzzled philosophers and poets for ages: Should a veggie burger go out of its way to taste like a beef burger, or should it embrace its veggie-ness? A new meat-free burger has taken imitation to a whole new level of flattery.It’s called the Impossible Burger. It’s new. It’s only available in restaurants -- and not many restaurants, so far -- and it is so much like a beef hamburger that it actually bleeds when you bite into it. But it’s made from plants, not from cows. Midday’s Nutrition Diva, Monica Reinagel, is here to help us size-up the Impossible Burger, and to talk about other items of interest in the ever-changing landscape of healthy eating. Monica is a licensed nutritionist and the author of six books who blogs at nutritionovereasy.com. She is also the creator of the weekly Nutrition Diva podcast, which has become one of iTunes' most highly ranked health and fitness podcasts since it debuted in 2008.