Piatti Italian Restaurant and Bar has 9 locations across 4 states. They pride themselves on an open kitchen layout and stone hearth pizza ovens. However if you’re vegan, you probably care more about their menu. I contacted their Danville, CA location, and they responded with a list of options suitable for a vegan diet. Note that different Piatti locations have different menu offerings, but this will give an idea of what can be offered.
Vegan Menu Options at Piatti
Fit Corn Fusilli
Mixed Greens salad
Capellini with tomato sauce (not on official menu but available if asked for)