Preheat your oven to 230C/210C Fan/Gas 8, or as high as your oven allows.
In a shallow bowl, whisk together lime juice, soy sauce, and sugar until the sugar dissolves.
Place the salmon fillets into the mixture, ensuring they’re evenly coated. Let them marinate, skin side up, for 10 minutes.
Lightly grease a roasting tin with olive oil.
Add broccoli and green beans to a bowl, cover with boiling water, and let sit for 5 minutes. Drain thoroughly.
Arrange the salmon, skin side down, on one side of the roasting tin. Place the vegetables on the other side.
Toss the vegetables with the remaining soy-lime marinade to coat, and cover them loosely with foil, leaving the salmon exposed.
Roast in the preheated oven for 12 minutes, or until the salmon is cooked through and flakes easily with a fork.
While the traybake cooks, whisk together the dressing ingredients: garlic, ginger, spring onion whites, chilli, lime juice, soy sauce, olive oil, sesame oil, and sugar.
Once done, spoon the dressing over the roasted vegetables, garnish with spring onion greens, and serve immediately.