Salmon with onion sushi typically combines the rich, buttery flavor of salmon with the pungent and slightly sweet taste of onions. The salmon’s natural richness pairs well with the crisp texture and mild sweetness of thinly sliced onions. The combination offers a balance of savory and sweet notes, creating a refreshing and flavorful profile. The onions may add a subtle crunch and freshness to each bite, enhancing the overall taste of the sushi. Overall, this sushi variation provides a delightful mix of textures and flavors, making it a popular choice for those who enjoy the complementary tastes of salmon and onion.