Wash and spin dry the spinach. Also clean, wash and drain well the strawberries. The avocado cut in half, remove the core and dissolve the flesh from the shell.
Cut the flesh of the avocado and strawberries into pieces. Roast the hazelnuts in a frying pan until golden brown.
Mix in a bowl Strawberry Vinegar and mustard, beat the olive oil slowly in. Season the vinaigrette with salt and pepper.
Finally, mix all ingredients in a bowl.