Korean Beef Bulgogi with Zucchini Noodles

4 Servings11 ingredients
1 pound flank steak sliced thinly against the grain
0.25 cup soy sauce
2 tablespoon sesame oil
2 tablespoon brown sugar substitute
3 clove fresh garlic minced
1 tablespoon ginger grated
0.25 teaspoon black pepper
2 medium zucchini spiralized
2 tablespoon vegetable oil
1 tablespoon sesame seeds for garnish
2 whole green onion thinly sliced, for garnish