Mix salad dressing and set aside. (Some in the family prefer with the mustard and some without).
Set out 4 individual salad plates and place 2 cups baby greens along with 8 (45 gr/2 CHO) Blackberries. Sprinkle a few slivers of red onion on each plate.
Drizzle with 1 TBSP dressing or by the gram. Feel free to make more dressing if you like. Equal parts of the oil, juice and balsamic make it easy to do.