Gruyère cheese is considered to be one of the finest Swiss cheeses. Its taste is nutty There are some more cheeses that could be a good substitute for Gruyère . Jan 4, I am trying out a recipe and I have no idea what Gruyere Cheese is. Anyway, you can substitute swiss cheese for Gruyere. However, Gruyere. I though processed Swiss only came in slices. But sure you can use it. It don't be as nice as regular but will do in a pinch. I'd ad some Parm to improve the flavor. Nov 2, In our series on cheese, we aim to demystify the world of cheeses. This time it's all about Swiss cheese. Cheese! Everyone loves the stuff an. Sep 11, More common substitutes vary depending on the purpose; Most people use mozzarella for melting, Muenster and Swiss cheese when going for. A generic term that refers to many varieties of cheese from Switzerland including emmenthaler, Jarlsberg, Gruyere. In the U.S. Swiss cheese is a processed.