The Pizza Research Institute, or just "PRI" as Eugenians like to call it, makes hippie pizza. Not pizza-pizza. "Hippie pizza," as Mark Kosmicki of the Party Cart in Eugene clarified for us when we told him we were going that night. At PRI, you won't find pepperoni. Nope, just baked spicy tofu, huge trees of broccoli and cauliflower, dried apricots, pesto, gluten-free crust, and a vegan alternative to everything.