Whole Heart Provisions — an all vegetarian spot serving up fast-casual bowls in Allston — is launching a quarterly chef collaboration, inviting a local guest chef to create a seasonally inspired bowl. First up are chef Steve “Nookie” Postal and Nicco Muratore from Commonwealth Restaurant & Market. The appropriately named Nookie Bowl boasts lots of fall flavors, including roasted squash, pumpkin giardiniera, currants, crispy old bay brussels sprouts, spicy green olives and “all the seeds.” Stop by Whole Heart at 487 Cambridge Street, Allston, MA to try it for yourself.