Prepare the Marinade: In a bowl, whisk together soy sauce, honey, rice vinegar, grated ginger, minced garlic, and sesame oil.
Marinate the Cod: Place the cod fillets in the marinade and let them sit for at least 15 minutes. For deeper flavor, marinate for up to 1 hour in the refrigerator.
Cook the Fish: Heat a skillet over medium heat. Remove the fillets from the marinade, reserving the liquid. Sear the cod for 3-4 minutes on each side until golden brown and cooked through.
Reduce the Glaze: Pour the remaining marinade into the skillet and simmer for 2-3 minutes until slightly thickened. Spoon it over the fish.
Garnish & Serve: Plate the cod and sprinkle with green onions, sesame seeds, and fresh cilantro. Serve with lime wedges for an extra citrusy touch.