FOR SALAD: Combine assorted salad greens, broken into bite-sized pieces and chopped red cabbage. Mix cheese and carrot until blended; shape into small balls and place on salad greens. Arrange onion slices and tomato wedges on top of the lettuce.
FOR DRESSING: Use blender or food processor to combine all ingredients. Alternatively, you may whisk all ingredients together by hand until well combined.
TO SERVE: Drizzle dressing over the salad and enjoy!