Preheat oven to 425 degrees. Spray an 8-inch square baking dish with cooking spray. Season both sides of the fish lightly with salt and pepper and place in the dish. Set aside.Advertisement
Mix together the lime juice, honey, vinegar, soy sauce, ginger, and chile sauce in a small saucepan; bring to a boil. Reduce heat to a simmer, and cook until thick and syrupy, about 3 minutes. Spoon about 1 teaspoon of the glaze evenly over each cod fillet. Reserve any leftover glaze for serving.
Bake in the oven until fish is opaque and just cooked through, about 12 minutes. Garnish cod with mint and scallions, if desired.