There are two types of parmesan cheese used in recipes, the shakeable dry parmesan cheese that doesn't melt and the fresh, shredded parmesan cheese that melts. The dry parmesan cheese is easy to replicate in flavor and textures using cashews or hemp seeds and nutritional yeast which is a cheesy tasting deactivated yeast (aka nooch). There are many brands that make tasty dairy-free, meltable parmesan cheese now - two popular brands are Violife and Follow Your Heart.