Peel and halve the potatoes. Wash green peppers and cut into 4 parts. Wash the tomatoes and cut them in half. Cut the onion and garlic into small slices.
Spread the bottom of a large roasting pan (rectangular) with olive oil, halve the potatoes, halve the tomatoes, add the chilli cut into thin strips. Add olives, onions, garlic and parsley in a split manner. Then mix everything well together with the specified spices. Pour the vegetable stock into the baking pan.
Preheat the oven to 180 ° C. Leave the whole thing in the oven for about 25-35 minutes (25 minutes with convection) on the lowest rack at 180 ° C.