Mix room warm butter with lemon rind, 2 teaspoons lemon juice, mustard, salt and pepper. Spoon butter onto a piece of baking paper. Use the paper to form a roll (approx. 10 cm long). Keep cold. Wash the zucchini and cut off the ends. Slice lengthwise into 24 thin slices.
Season with salt and pepper. Drain mozzarella and cut into 12 slices. Wash the herbs and dab dry. Place two zucchini slices crosswise on the work surface. Put a slice of mozzarella and some herbs in the middle. Season with salt and pepper and whip zucchini ends over the mozzarella. Fix with a wooden stick. Put the zucchini packs in a cool place. Sprinkle salmon chop with lemon juice and season with salt and pepper. Grill the salmon on the grill for about 5 minutes on each side. Grill the zucchini parcels for 2-3 minutes on each side.
Season with salt and pepper and whip zucchini ends over the mozzarella. Fix with a wooden stick. Put the zucchini packs in a cool place. Sprinkle salmon chop with lemon juice and season with salt and pepper. Grill the salmon on the grill for about 5 minutes on each side. Grill the zucchini parcels for 2-3 minutes on each side. Cut butter into slices. Serve grilled salmon with lemon butter and zucchini packets