1Cook pasta as directed on package; drain. Rinse with cold water; drain.
2In medium bowl, mix pasta, onions and half of the bacon. In small bowl, mix mayonnaise, cheese, lemon juice, sugar and garlic powder.
3In 3 1/2-quart salad bowl, layer salad greens, pasta mixture, pea pods, cauliflower, broccoli and bell pepper. Pour mayonnaise mixture evenly over top.
4Cover and refrigerate at least 2 hours. Sprinkle with remaining bacon just before serving.