Preheat oven at 400°
Roll out the puff pastry sheet to fit a 9” pie dish. Butter and flour the pie dish. Place the pasty and refrigerate for 30 minutes. Meanwhile peel cut and removes all seed from the tomatoes. Chop them roughly, salt and pepper them.
Add the peas, artichoke and tomatoes to the puff pastry.
Beat together the eggs, heavy cream and the Gruyere cheese and pour over the vegetables.
Lower the heat to 375° and cook for 25 to 30 minutes or until the top is nicely browned and the eggs mixture is solid.