Prep the vegetables and set aside.
Season both sides of the fish with a generous amount of salt and pepper. Heat 2 tsp Olive oil in a pan on medium high heat. Sear fish on each side until golden brown and just cooked through- about 2-3 minutes per side. Keep fish warm in the oven while you prepare the sauce.
Heat 2 tsp of oil in the pan, Add CARROTS, first and sauté for 1 minute. Add in leeks and snow peas to the pan and sauté until crisp tender- about 3-4 minutes. Remove and set aside.
On low heat, add in the remaining 1 tsp of oil. Stir in the lime zest, shallot, half the curry paste, ginger and tumeric to the pan.
Cook stirring constantly to bloom the spices and the ginger. Pour in the coconut milk. Raise heat to medium and bring to a gentle simmer then cook on low heat for 5-6 minutes until sauce reduces by about one third.
Add the remaining curry paste if desired.
Add in the 2 tsp of lime juice .
Stir in the vegetables and heat until warmed through.
Serve in shallow bowls with sauce and vegetables spooned over the fish. Basmati rice would be a wonderful side dish for any extra sauce.