Roast the pine nuts in a pan without fat for about 4 minutes while stirring. Remove and place on kitchen paper. Wash the basil, dab dry, pluck the leaves from the stalks. Peel and halve the garlic. Grate the Parmesan finely. In a tall container, finely puree basil, garlic, pine nuts and 100 ml with a hand blender for about 2 minutes. Add Parmesan cheese and mix again briefly. Season to taste with salt and pepper.
Clean the salad, wash and drain well. Wash the tomatoes and grate them dry. Heat 2 tablespoons of oil in a frying pan. Sauté the tomatoes for about 1 minute, stirring occasionally. Sprinkle with sugar and caramelise for about 30 seconds. Deglaze with vinegar and remove from heat.
Cut the avocados in half, remove the seeds and remove the flesh with a spoon. Mash the flesh in a bowl. Season to taste with salt, pepper and tabasco. Cut mozzarella into slices.
First cut the bread in half crosswise, then cut the 4 halves in half horizontally. Spread the bread halves with pesto. Cover the 4 lower halves with rocket, avocado, mozzarella and tomatoes. Cover with the upper halves. Roast the sandwiches one after the other in the preheated contact grill for 3-5 minutes until crispy. Cut the sandwiches in half and arrange.