While fusion cuisine is a general term for the combination of various forms of cookery, the concept can take several forms. One approach is regional fusion that combines the cuisine of a region or sub-region into a single eating experience. Of these sort, Asian fusion restaurants have become popular in many parts of the United States, often featuring Indian, East Asian, and South-East Asian dishes along side one another and offering dishes that are inspired combinations of such cuisines.
Another incarnation of fusion cuisine the more eclectic approach, featuring original dishes using varieties of ingredients from various cuisines and regions and combining them. Such restaurants are often trendy and have no singular thematic cohesion other than innovative eclecticism in their menus. Such a restaurant might feature a wide variety of dishes inspired by combinations of various regional cuisines with new ideas.
Since fusion cuisine is a general term, it is legitimately applied to either sort of restaurant. While many diners feature dishes from Greek, Italian, and sometimes Asian cuisines side-by-side, these restaurants are generally not considered fusion as they fail to combine any elements of the cooking styles and also have no over-arching fusion or eclectic theme.