I just made myself a new brand of vegan frozen pizza (I'm allergic to milk) and I had such high hopes. The box was so cool and edgy. I thought surely there was something yummy in there. Womp-womp. Nope. Cardboard city. No one makes dairy-free DiGiornos. But they should, damn it. At least it wasn't vegan AND gluten free like most companies do--lump all the food problems together in one product! Bleh.
@Jenthulhu I know someone who has tried buffalo cheese- not sure if it works on pizza, but apparently lactose intolerant people can have. Also coconut cheese.
I also recommend using a mini baguette as your pizza base. Super niiice