For the dough, melt butter and add 6 tablespoons of water. Mix flour, sugar and 2 teaspoons of salt. Knead butter, egg and flour to a smooth, elastic dough. Form dough into a ball, wrap in foil and let rest for 30 minutes. Peel carrots, onion and garlic and cut into fine cubes.
Clean and wash the celery and cut it into fine cubes. Heat oil, fry minced meat for about 8 minutes while turning. After 4 minutes add prepared vegetables. Season with salt and pepper. Stir in tomato paste 2 minutes before the end of cooking time and roast with it. Add tomatoes and chop with a spatula. Season with thyme and oregano. Grease a casserole dish (approx. 2 litres capacity). Roll out the pasta dough thinly on a floured work surface and line the dish with it. Cut off overhanging dough, knead and roll out again.
Season with thyme and oregano. Grease a casserole dish (approx. 2 litres capacity). Roll out the pasta dough thinly on a floured work surface and line the dish with it. Cut off overhanging dough, knead and roll out again. Layer tortellini alternately with the sauce in the tin. Cut a lid from the remaining dough the size of the tin and place it on the tortellini. Bake Timballo in a preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for about 25 minutes