Maybe your new favorite bean dish:
[1] If using a tart springform pan, only 1 package of dough is needed.
Roll out an appropriate mass of dough thinly and place in a greased tart springform pan or on the baking sheet, respectively. Raise a rim in the tart springform pan. Cover the dough with onions, tomatoes, sausage strips and other ingredients.
Mix eggs, sour cream and garlic together for the glaze. Season with salt and freshly ground pepper and pour over the vegetables. Finally sprinkle with a little grated cheese and bake in a heated oven for 30-40 minutes at 180 degrees. When the surface is nicely browned, remove from the oven.