Position a rack in the center of the oven and heat the oven to 400°F.
Mix together scallions, lime zest, coconut cream, red curry paste and fish sauce in a small bowl. Sprinkle salmon fillets with salt and pepper. Spread each evenly with the mixture.
Set a large skillet over medium-high heat. When hot, add the oil. Add salmon fillets, skin-side down. They should immediately start to sizzle. Transfer pan to the oven and roast for 8 to 10 minutes, or until flesh is firm, opaque and flakes easily.