On Viceland’s LA episode of The Pizza Show, I was pleased to see the founders of California Pizza Kitchen, Rick Rosenfield and Larry Flax, give credit to Alice Waters for inventing California-style pizza (i.e., individual-sized with non-traditional toppings) at Chez Panisse Cafe in 1980 and to Ed LaDou for bringing it to wider attention at Spago before Rosenfeld and Flax hired him away, making it clear that Wolfgang Puck’s contributions were to knock off Waters’s business model and hire Ladou. The relevant bit is around 9’30":
https://video.vice.com/en_us/video/pizza-show-los-angeles/59775b6157756d683f103e5e
But apparently LaDou was making pizzas like that perhaps as far back as 1975: