Wash, quarter and seed the tomatoes. Cut the flesh into small cubes. Peel and chop onions and garlic. Carve the chilli lengthwise, remove seeds and chop finely. Heat oil.
Sauté onions and garlic in it until transparent. Add tomatoes and chilli. Deglaze with 200 ml water, salt and let it boil down for 5 minutes at high heat. Wash oregano, pluck leaves and stir in. Clean and wash the zucchini. Cut into wide, thin slices with a peeler. Spread a thin layer of tomato sauce on each tortillas and cover with 1 slice of ham. Spread zucchini strips evenly. Roll up the tortillas and place them in a suitable casserole dish. Spread the rest of the tomato sauce on top.
Spread a thin layer of tomato sauce on each tortillas and cover with 1 slice of ham. Spread zucchini strips evenly. Roll up the tortillas and place them in a suitable casserole dish. Spread the rest of the tomato sauce on top. Grate the cheese and sprinkle over it. Bake in the preheated oven (electric cooker: 200 °C/ gas: level 3) for about 20 minutes. Serve garnished with fresh herbs