2 parts oil, 1 part vinegar, 1/2 part mustard, salt and pepper to taste - whisk together.
Ingredients: Butter lettuce (not shown,) fresh tofu (cubed,) avocado (sliced,) grape or cherry tomatoes (halved,) hard boiled egg (peeled and halved,) green beans (blanched,) red onion (thinly sliced,) new potatoes (boiled and cut into wedges,) green and black olives (sliced,) capers.
Choose an attractive platter and create a bed of salad leaves. Carefully arrange ingredients symmetrically on top of leaves. I tried to keep the colors balanced on each side. How much of each is up to you. Sparingly drizzle a small amount of dressing over top. Other ingredients could include bell peppers and artichokes. Traditionally this salad contains tuna, but that's just gross.