Thai salmon miang recipe

½ cup shredded desiccated coconut
½ cup shelled peanuts
1 tsp vegetable oil
1 salmon fillet, about 200g
1 lime, diced with the skin on
1 Lebanese cucumber, cut into 1cm cubes
1 red bird’s eye chilli, sliced
1 eschalot, peeled and cut into 1cm cubes
1 cm ginger, peeled and diced
6 cherry tomatoes, quartered
1 head baby cos lettuce, leaves separated