Knead flour, 2 eggs, 1 teaspoon salt, cold butter in pieces and about 3 tablespoons cold water first with the mixer and then briefly with your hands. Chill for 30 minutes.
Roll out the dough in a greased pan and press 2-3 cm high on the edge, prick the base several times, sprinkle with breadcrumbs. Spread the broccoli, cheese, olives and tomato mixture on top.
For the topping, mix the quark, milk, 6 eggs, salt and pepper, pour over the vegetables. Bake in a preheated oven at 175 degrees (convection) for about 60 minutes.