Cut the salad along the stalk into segments so that it does not break into leaves. Fry the salad on the grill, it should be well browned on all sides.
Fry the almonds in a small frying pan. Carefully pour in the vinegar and lower the heat, ready 1 minute. Pour the salad with this mixture, salt, pepper and drizzle with olive oil.
Stir and transfer to a dish. Garnish with mandarin slices, then add grapes and sprinkle with arugula.