Heat frying pan at medium heat with oil. Add cabbage and carrot and cook for a minute. Add frozen seafood and 1/4 cup water, and cook for 2 minutes covered. Season with salt, pepper, Sake, and Soy sauce. Add green onions. Stir in potato starch slurry and let it thicken a little. Add sesame oil and stir. Set aside, cover and keep it warm.