Heat the 1. 0 tbsp (0. 5 oz / 14g) of avocado oil in a large skillet over moderate heat until it is hot and shimmering.
Add the 1. 0 chopped leek (5. 3 oz / 150g) to the skillet and sauté for 3 to 4 minutes until the leek softens and becomes fragrant.
Immediately add the diced 8. 0 oz (225g) trout fillets, 1. 0 tsp (0. 1 oz / 3g) grated ginger, 1. 0 tbsp (0. 5 oz / 15g) tamari soy sauce, and 0. 1 tsp (0. 02 oz / 0. 5g) salt to the pan.
Continue to sauté the mixture for 4 to 5 minutes, gently stirring, until the trout is no longer translucent and is fully cooked through.
Remove the pan from the heat, divide the dish into two portions, and serve immediately.
Grate Ginger Fresh: Always use fresh ginger rather than powdered for this recipe. Grating it on a microplane ensures you get the pungent, aromatic juices without biting into any tough, fibrous chunks.