First rinse zucchini for the salsa and dice very finely. Heat olive oil in a small pan. Fry the zucchini in it at high heat for about 1 minute. Mix in sugar. Then fold in the blueberries, toss briefly in the pan.
Season to taste with salt and cayenne pepper. Let it cool down.
Cut the lamb filets into small pieces of about 3 cm. Drizzle olive oil over them and mix with a spoon. Season with salt and pepper. Put the diced lamb on watered wooden skewers. Fry in a coated pan for 2-3 minutes all around.
Serve the salsa extra with the skewers.