Leave it to John McConnell, one of my favorite Napa Valley chefs, to dream up a new take on cacio e pepe. How did grated pecorino plus black pepper became America’s favorite flavor? It’s everywhere. Cacio e pepe potato chips. Cacio e pepe pizza. Cacio e pepe pasta sauce in a jar. (No, thanks.) McConnell anticipated this trend with his cacio e pepe croutons, which perk up the Caesar he serves at the Bruschetteria food truck in St. Helena.