Clean and halve the peppers, remove the seeds, wash and cut the peppers into strips. Wash and clean the zucchini and aubergine, halve lengthwise and cut into strips. In a large bowl mix vegetables with 2 tablespoons of oil. Place the vegetables on a baking tray and roast under the preheated grill of the oven (approx. 240 °C) for approx. 7 minutes, turning occasionally. Take out and let cool down.
Press sausage meat from the skin into a bowl. Finely grate 25 g cheese, knead and form 8 balls of the same size. Heat 2 tablespoons of oil in a frying pan. Fry the balls in the oil all around for about 10 minutes.
Peel and finely chop the garlic. Mix garlic and lemon peel in a small bowl. Fold in 2 tablespoons of oil. Drizzle the marinade over the roasted vegetables and mix well. Clean the rocket, wash and shake dry. Drain artichokes and cut in half lengthwise. Slice 50 g cheese into coarse shavings.
Cut the bread in half horizontally. Spread halves with pesto. Place the bottom half on a large cutting board. Cover with rocket, marinated vegetables and artichokes. Place meatballs on top and sprinkle with cheese shavings. Place the bread lid on top, press down lightly and cut into 4 equal pieces.