1. In a pan, sauté the onions, zucchini, and broccoli.
2. In a separate bowl, mix the flour, ras el maboul, salt, dill, drained tuna, eggs, and cream.
3. In an oven-safe dish, roll out the pie crust and prick it with a fork. Then add the grilled vegetables and cover with the cream, egg, and flour mixture. Presentation: add sliced tomatoes on top, followed by the grated cheese.
4. Preheat the oven to 180°C (350°F) for 15 minutes. Then bake for 35 to 40 minutes at 180°C (350°F).