The fusion style that grew from Vietnamese immigrants to the Gulf Coast and Cajun foodways is Viet-Cajun.
Viet-Cajun cooking emerged after the Vietnam War, when Vietnamese immigrants settled in Gulf Coast communities, including areas along the Texas and Louisiana coast. Their culinary traditions encountered established Cajun and Gulf seafood practices, producing a hybrid style especially associated with crawfish, shrimp, crab, and other shellfish.
One of the best-known examples is Vietnamese-style crawfish. Instead of relying only on familiar Cajun boil seasonings, cooks may add Vietnamese ingredients and flavor profiles such as garlic, chile, lemongrass, citrus, or butter-based sauces. The result is not a single fixed recipe but a broad family of dishes shaped by local seafood markets, restaurant traditions, and immigrant communities.
Viet-Cajun is distinct from Nikkei, the Japanese-Peruvian tradition; Chifa, Chinese-Peruvian cuisine; and Tex-Mex, the Mexican-American borderland style. It is also more specific than simply calling the food “Asian Cajun,” because Viet-Cajun identifies the Vietnamese and Louisiana Gulf Coast connection.