Cut flat bread into 6 strips (1-2 cm thick each). Sprinkle 1 teaspoon of olive oil on each side. Cut slices in half and roast them under the hot grill until golden brown. Roast pine nuts in a pan without fat.
Remove and chop roughly. Clean and wash the rocket and drain well. Chop the rocket finely. Peel garlic and chop very finely, or press through a garlic press. Mix ricotta, rocket, pine nuts and garlic and season to taste with salt and pepper.
Wash and halve the tomatoes. Spread bread with ricotta cream and cover with tomatoes. Finally, slice Parmesan cheese on top and sprinkle with coarse black pepper.