Place the baguette slices on a baking sheet. Brush with olive oil, sprinkle with salt. Bake in an oven preheated to 220 ° C until golden brown, for about 7 minutes. Remove slices of bread from the oven and cool slightly.
Using a peeler, cut the zucchini into long thin strips. Stir in lemon juice, olive oil, and a large pinch of salt.
Grate the warm slices of bread with the garlic cloves. Top with zucchini, cheese and sprinkle with freshly ground pepper. Drizzle with vegetable juice.