The River City Chronicles - River City, #1

A group of strangers meets at Ragazzi, an Italian restaurant, for a cooking lesson that will change them all. They quickly become intertwined in each other's lives, and a bit of magic touches each of them. Meet Dave, the consultant who lost his partner; Matteo and Diego, the couple who run the restaurant; recently-widowed Carmelina; Marcos, a web designer getting too old for hook-ups; Ben, a trans author writing the Great American Novel; teenager Marissa, kicked out for being bi; and Sam and Brad, a May-September couple who would never have gotten together without a little magic of their own.
Everyone in the River City has a secret, and sooner or later secrets always come out.