The steps for preparing the stuffing of Spanish mackerel meat and leek filling are as follows:

Material preparation: 400g of Spanish mackerel, 150g of meat filling, 200g of leeks, a bottle of cooking oil, a bottle of light soy sauce, and 1 spoon of oyster sauce , one part MSG, a handful of salt, half a bowl of pepper water, one part of minced ginger, etc.

1. Select the leeks, wash them, cut them into cubes and set aside.

2. Wash the Spanish mackerel, remove the head and tail, and scrape off the fish meat.

3. Pour in the pepper water and mix well.

4. Add mackerel meat, lean meat, leeks, cooking oil, minced ginger, and light soy sauce into the basin and stir evenly.

5. Add salt, MSG and oyster sauce and stir evenly.