Combine the first 5 dressing ingredients in a small saucepan over medium heat. Slowly add water, stirring, and bring to a boil. Reduce heat and simmer for 5 minutes. Remove from heat and stir in juice; set aside.
Combine all salad ingredients (except peanuts), in a large shallow serving dish and gently toss together until evenly mixed; set aside.
Toss the steak with garlic, sugar, and soy sauce.
Heat oil in a nonstick skillet or wok.
Add beef and stir-fry for about 3-5 minutes, until the strips are evenly browned and cooked to taste.
Spoon stir-fried beef over the top of salad. Drizzle dressing over and sprinkle with peanuts.