Preheat oven to 400° F. Combine the soy sauce, rice wine, honey, 1 teaspoon of the sesame oil, and the garlic in a shallow dish. Place the fillets in the dish and turn to coat. Marinate for 30 minutes in the refrigerator. Place the potatoes in a pot of cold water. Bring to a boil and cook until tender, about 15 minutes; drain. Toss the potatoes with the sesame seeds, salt, 3 tablespoons of the vegetable oil, and the remaining sesame oil. Transfer to a roasting pan lined with aluminum foil or parchment paper. Roast for 25 minutes. Heat the remaining vegetable oil in a nonstick skillet over medium-high heat. Let the excess marinade drip from the fillets and sauté them for 1 to 2 minutes per side or until browned. Transfer to a baking pan and roast 3 to 4 minutes for medium rare. Meanwhile, add the remaining marinade to the skillet. Boil and cook for 1 minute. Serve over the fillets with the potatoes and snow peas.