1.Take a casserole dish, heat oil in it and cook onions in it for 5 minutes.
2.Put green peppers in the casserole and cook for 5 more minutes.
3.Add tomatoes, potatoes, mixed vegetables, salt, pepper, sugar and paprika and let the ingredients boil.
4.Lower the flame and cook for 20 minutes.
5.Combine flour and water and put in the casserole.