Swiss cheese 
noun [mass noun]
Cheese from Switzerland, typically containing large holes.Layer with thinly sliced, snipped prosciutto and grated Parmesan cheese or sliced Swiss cheese....
- On the way home we talked longingly of sleep and filled ourselves enormous sandwiches of Swiss cheese, slivered bell peppers, fresh basil leaves, olive oil, salt, and pepper.
- The pork schnitzel with Swiss cheese was especially to be recommended, but there is a substantial Thai and international list of dishes from which to choose.