Prepare pasta according to package directions. While pasta is cooking, in a small bowl, combine soy sauce, vegetable oil, sugar and red pepper flakes. Heat oil in a medium skillet over high heat. Add carrots, pepper, walnuts, onion, snow peas and mushrooms. Stir-fry 1 minute. Add water. Cook and stir 3 minutes longer. Add pasta and toss to mix. Add soy sauce mixture; toss well and serve. *To toast walnuts: In small skillet, heat 1 teaspoon vegetable oil. Add walnuts and cook and stir until browned, about 3 to 4 minutes. Serves 4 to 6 Each serving provides: 387 Calories; 9.8 g Protein; 46.8 g Carbohydrates; 18.6 g Fat; 0 mg Cholesterol; 441 mg Sodium. Calories from Fat: 43% Copyright National Pasta Association (http://www.ilovepasta.org) (Reprinted with permission)