Combine mirin or white wine, orange juice, soy sauce, rice vinegar, red pepper flakes and water in a small bowl.
In a large wok or very large (14-inch) saute pan, heat 1 tablespoon of oil over medium-high heat. Add the beef and cook, stirring, until just browned, about 2 minutes. Transfer the beef to a plate. Heat the remaining tablespoon of oil over medium heat and cook garlic until fragrant, about 30 seconds. Add snow peas, broccoli, asparagus and edamame, raise heat to medium-high, and cook for 3 minutes until vegetables are slightly softened. Add the mirin-soy mixture and cook, stirring, until edamame are cooked and asparagus is crisp-tender, about 4 minutes. Add the beef and dissolved cornstarch and stir to incorporate. Cook until mixture thickens slightly and beef is heated through, an additional 2 minutes. Drizzle with sesame oil and serve.
Eating Healthy in 2009. Copyright 2008, Ellie Krieger, All Rights Reserved.