Reduce the orange juice to 1/3. Peel the shrimps, except for the tail fin, and remove the intestines. Wash shrimps and pat dry. Heat 2 tablespoons of oil and fry the prawns for about 4 minutes, turning them over.
Season with salt, pepper and lemon juice. Clean the pointed cabbage, cut in half and cut into strips from the stalk. Peel kohlrabi and cut into very thin slices. Clean, wash and slice the radishes.
Wash the spinach and spin dry. Clean and wash spring onions and cut into thin rings. For the vinaigrette, whisk orange reduction, vinegar, mustard and honey. Season with salt and pepper. Stir 2 tablespoons of oil drop by drop into the vinaigrette.
Mix the salad ingredients and arrange on plates.