A fresh, light, delicious salad.
Preparation Time: 15 mins
DRESSING: Combine mustard, vinegar, garlic, and olive oil in a small jar with lid and shake well.
SALAD: Place the tomato, shallots, cucumber and basil in a small bowl, add the dressing and mix to combine.
Drizzle the lemon juice over the avocado halves. Use a small knife to remove a 1/2-inch slice of the rounded side of the avocado half. Place the avocado halves on serving plates. Divide the tomato salad equally among the four avocado halves. Garnish with arugula leaves and black olives.