Picture it: an overhead photograph of bronze, burnished chicken thighs surrounded by wrinkly bursts of cherry tomatoes, tendrils of skinny asparagus, maybe some dollops of a green-hued sauce. Is that pesto? Chermoula? Scroll down your timeline a bit, and look here: an artful scattering of roasted carrots, some purple onions, and parsnips on a sheet pan. Is that… a roasted grape? Probably.