Combine the first 8 ingredients in a blender; process until smooth. Heat oil in a wok or large nonstick skillet coated with cooking spray over medium-high heat until hot. Add onions, and stir-fry 1 minute. Add carrot and bell peppers; stir-fry 1 minute. Add broccoli; cover and cook 2 minutes. Add vinegar mixture and sprouts; bring to a boil, and cook, uncovered, 30 seconds, stirring constantly.