Turmeric Salmon With Coconut Crisp

Name: Turmeric Salmon With Coconut Crisp
Ingredients: 5 Tbsp. extra-virgin olive oil, divided; 2 bunches Swiss chard, ribs and stems removed and finely chopped, leaves coarsely chopped (keep separate); 1 large shallot, thinly sliced; 1 3 piece ginger, peeled, thinly sliced lengthwise; Kosher salt; ½ tsp. ground turmeric; 1 1½-lb. skinless salmon fillet, preferably center cut; 3 garlic cloves, thinly sliced; ½ serrano chile, thinly sliced; ½ cup unsweetened coconut flakes; Freshly ground black pepper