Peel the onion, cut into small cubes and sauté in olive oil. Add the minced meat and roast. Cut the peppers into small cubes. Scald tomatoes briefly, peel and core them, also cut into small cubes. Add both vegetables to the meat and steam until most of the liquid has evaporated. Season with thyme and oregano and season with salt, pepper and a pinch of cinnamon.
Roll out the finished puff pastry, distribute the meat filling and the crumbled feta in the middle of the dough, fold in and brush with cold water.
Bake the strudel at almost 200 ° C for about 20 minutes.