In a small bowl, mix together 1 tbsp (15 mL) cilantro stems, curry powder, 2 tbsp (30 mL) oil and the ginger paste. Place halibut in a baking dish. Spread mixture over halibut. Marinate 30 min.
Meanwhile, in a bowl, mix together tomatoes, green onions, 2 tbsp (30 mL) cilantro leaves, lime juice, remaining oil and the honey. Set aside.
Preheat barbecue to high. Season halibut with salt, place on barbecue and cook 3 min. per side or until cooked through.
Spoon tomato mixture onto serving plates and place halibut on top. Garnish with additional cilantro leaves if desired.