Place the salmon pieces on a large plate, season, scatter the lime zest (1 lime) and drizzle the lime juice over the top (½ lime). Set aside.
Cut the cabbage in half lengthways and then each piece again in half lengthways removing the tough middle. Slice each piece into approx. 1 cm thick strips.
Heat the oil, add the cabbage and cook for 5-6 minutes over a medium heat until softened stirring often. Remove from the heat, add the dill, season to taste and stir thoroughly.
Place the salmon pieces on top (including any leftover lime marinade), gently pressing into the cabbage mixture. Drizzle the melted butter over the salmon, cover the dish and bake for 20 minutes or until the salmon is fully cooked. Remove from the oven and serve immediately.
Notes
Equipment: If possible use a casserole dish that's suitable for all heat sources (for convenience). Alternatively prepare the cabbage in a pan, then transfer into your oven dish.
The cabbage: I recommend using either pointed cabbage or savoy cabbage. They are both sweeter than white cabbage and take less time to cook.
Cooking times: Cooking times may vary depending on the thickness of your salmon pieces.
Best served immediately. Refrigerate leftovers for up to 3 days.