New Haven's "White Pizza" (1980)

[Barnhart]

The crust is yeasty, ever so slightly crisp around the edges, and the
bit of light tomato sauce and melted cheese is more a garnish for the
bread than the reason for the whole thing.  Amalfi also serves  white
pizza, the same dough with garlic and oil, minus the tomato and cheese.
 “Richman On Restaurants: Amalfi Ristorante Intaliano,” The Washington
Post (Nexis), May 1, 1977, Magazine sect., p 64

1977 (but presumed to be earlier).