Chop turkey. In a Dutch oven combine turkey, salsa, beans, chili powder, and the 2/3 cup water. Bring to boiling.
Meanwhile, for dumplings, in a medium bowl mix together corn bread mix, egg, and the 1/4 cup water. Drop batter by large spoonfuls onto boiling chili.
Cover; reduce heat and simmer for 10 to 15 minutes or until a wooden pick inserted into a dumpling comes out clean. To serve, top chili and dumplings with cheese, green onions, and chili powder, if desired.