Perhaps your new favorite bean dish:
Make the beans soaked the day before together with the leek and the onion cubes (1) in the well-seasoned clear soup (with pepper, salt, yeast cubes and bay leaf) for about 60-70 min.
Chop the onions (2) and sauté in the vegetable oil until translucent. Add the peeled and quartered tomatoes, crushed garlic and spices and extinguish with wine. Simmer for a few minutes, allowing the tomatoes to cook slightly. Mix the beans and tomatoes together and season.
This quantity can be baked in a greased gratin dish with the cheese.