For 4 small servings such as the one shown above; roasted Brussel sprout (6 halved or quartered depending on its size), apple (one Honey crisp or other sweet and sour crisp apple, skinned and cut into small chunks), Campari tomato (4, skin removed and quartered), cucumber (one minicucu, soft center removed and cut into small chunks).
Dressing: I mixed store bought mayonaise (1 tbs), plain yogurt (1 tbs), Dijon mustard with horse raddish (2 tsp), salt and black pepper.
I served this on the bed of baby spinach. This was a good starter dish. Brussel sprouts and apple go very well together. The contrast between the crisp apple and soft and sweet Brussel sprout was supported by tangy but creamy dressing.