Yes, food is a great conversation starter (although it doesn't seem to be here, so far! )
I never eat a significant meal within 2 hours of doing yoga, mainly because it can make me feel uncomfortable and heavy, particularly if I'm doing a lot of pranayama. It also feels like energy flows better and my practice is lighter if I haven't eaten.
I'm not too concerned with the foods that I eat after a yoga practice. I generally follow what my body craves, whether it's salad, tofu or salmon.
If I do need to eat something before a practice, I'm a big fan of smoothies. There are many ways to make it super healthy, by adding kale, spinach, nuts, hemp, etc..