If you don't want to use tuna, you can use sardines, chicken, beef, or salmon mince instead. You can also add kumquats or pineapple for extra taste. You can also use any type of fish for the kebabs. If you're using a fish that's in season, you can skew it yourself. The skewered tuna will be rare in the center.
This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition data is gathered primarily from the Spoonacular Database, whenever available, or otherwise other online calculators.