Melt 2 tabspns. butter and fry 2 chopped onions. Add 1 pkt. Spring Vegetable Soup, 1/2 cup grated cheese, 1 lge. diced tomato and 1 tspn. mixed herbs. Simmer one minute. Stir in a beaten egg and cook for a further 1 minute. Allow to cool and use in sandwich fillings or on French rolls.
Source: Mantle of Safety Cookbook 2 (The Port Augusta Women's Air Branch Auxillary of the Royal Flying Doctor Service of Australia, c1987), p.6.