Yaki Udon With Shrimp Recipe

Name: Yaki Udon With Shrimp Recipe
Ingredients: 2 servings frozen udon, approximately 8 ounces each; 2 tablespoons canola oil; 1 red bell pepper, stemmed, seeded, thinly sliced; 4 scallions, ends trimmed, white and green parts thinly sliced and kept separate; 2 garlic cloves, minced; 1-inch piece of ginger, peeled, minced; 1/4 cup soy sauce; 1/4 cup mirin; 1 pound shrimp, peeled and deveined; 4 ounces bean sprouts; 1/2 sheet nori, thinly sliced; 1/4 cup bonito flakes; Togarashi for serving (optional)