Put 1/2 cup water in a large cooking pot. Add the chopped onion, bay leaves and thyme. Saute about 5 minutes. Add chopped green pepper and mushrooms. Continue cooking about 10 minutes.
Add the remaining water, soy, wine, tomato paste, and parsley. Add a little fresh ground pepper, if desired. Simmer slowly over low heat for at least 60 minutes, until the liquid becomes a thick sauce. Remove bay leaves. Serve very hot over brown rice or pasta.