Today is National Sandwich Day. (Scratching my head over who comes up with these things, but we’ll run with it.) And what better way to celebrate than with a sandwich classic…the BLT? A vegan BLT. Let’s dig in. While it’s kind of hard to construct a bad BLT, there are a few tweaks you can try to make it even better both for taste and to give it a healthier nutrition profile. Here’s how:   Start with whole wheat or whole grain bread. Whole wheat breads (and 100% whole grain breads are even better), give you the whole enchilada of fiber and nutrients and prevent sharp spikes in your blood…