Bring water to a boil in medium saucepan. Add onion, carrot, cabbage, broccoli and bell pepper. Cook until vegetables begin to soften, about 4 minutes; drain and set aside.
Heat wok or stir-fry pan over medium-high heat. Add oil and garlic; cook until garlic begins to brown. Add lemon grass. Stir in soy sauce and sate sauce. Add sugar; mix well. Add cooked vegetables, then mushrooms, bamboo shoots, water chestnuts, snow peas and green onions. Stir-fry 1 1/2 to 3 minutes, until crisp-tender. Serve immediately.Makes 2 to 3 Source: