I first made this months ago with the very first butternut squash of the season. I had decided ahead of time that it would be a “non-photo” night since casseroles are not the easiest subject matter. Of course, after we made it, I was regretting not having the camera out because it tasted way too good not to share. For the second go-around, I made it with sweet potatoes only because that had a better ring than “butternut squash surprise.” If you’re vegan, this will taste like a baked mac and cheese. If you’re not vegan, it will just taste awesome, and you won’t really believe it’s vegan (surprise). If you use gluten free bread crumbs on top instead of panko, it’s gluten free (double surprise).