Cut large pieces of aluminum foil big enough to form a packet. You’ll need one per serving. Divide the bok choy, bell peppers and salmon fillets equally between the foil pieces.
In a small mixing bowl, whisk together the coconut milk, lime juice and red curry paste. Spoon the curry sauce over top of the fish and vegetables. Fold the foil to tightly seal each packet. Carefully transfer the packets to a baking sheet.
Bake for 20 to 25 minutes, or until fish flakes easily and is cooked through.
To serve, transfer the contents of the packets to a plate and season with salt and pepper. Enjoy!