In a small bowl, whisk together the dijon mustard, lemon juice, salt and pepper. Slowly whisk in the olive oil until the vinaigrette is emulsified.
Slice the peel and white pith off the grapefruits and then cut between the membranes to release the grapefruit segments.
Cut the avocados in half, remove the pits and peel off the skin. Cut the halves into slices.
Arrange the grapefruit segments on a large platter or 4 small plates. Arrange the avocado slices with the grapefruit.
Drizzle with vinaigrette and sprinkle with salt and pepper and serve immediately.
Notes
Serving size: 1/4th recipeWW Points: 6Check the WW Points for this recipe and track it in the WW app. (Must be logged into WW on a smartphone or tablet.)7PointsPlus (Old plan)To cut the calories and Points values even further, use only 1 avocado. The dijon mustard in this recipe is quite pronounced, so if you are not sure you'll like it, use the lesser amount.