Combine salsa ingredients in a bowl. Cover and store in the fridge until needed. Preheat the oven to 400 degrees F. Place the halibut in a baking dish lined with parchment paper. Drizzle with the oil and lime juice; season with salt and pepper. Bake 12 to 15 minutes, or until just cooked through. Divide the fish among plates. Top each with salsa and serve.