Combine the soy sauce, mirin, brown sugar, ginger and pepper flakes in a small saucepan and simmer for 10-15 minuets to thicken the sauce. Set aside.
Heat the oils in a skillet over medium high heat. Add the zucchini and ginger and saute for 1-2 minutes just until zucchini is slightly softened. Add the bison and saute for 1 minute to reheat the meat.
Divide the cooked soba noodles between two large bowls. Divide the bison and zucchini mixture between the two bowls, and add half of the carrots, scallions, and avocado to each bowl. Drizzle with desired about of Spicy Soy Glaze.
Recipe by Cooking With MicheleĀ® at https://cookingwithmichele.com/2020/04/bison-or-beef-soba-noodle-bowls/