In a med mixing bowl, stir together flour, cornmeal, baking powder, and 1/4 t salt; set aside. In a small bowl combine egg white, milk, and oil; set aside.
In a 10" skillet combine the water, onion, and garlic. Bring to boiling; reduce heat. Cover and simmer 5 minutes or till tender. Stir in garbanzos beans, kidney beans, tomato sauce, drained green chili peppers, chili powder, and 1/4 t salt.
In a small bowl stir together cornstarch and 1 T water. Stir into bean mixture. Cook and stir till slightly thickened and bubbly. Reduce heat.
For dumplings, add milk mixture to cornmeal mixture; stir just until combined. Drop dumpling mixture from a Tablespoon to make 5 mounds atop bean mixture.
Cover and simmer for 10-12 minutes or till a toothpick inserted in the center of a dumpling comes out clean.
Per serving: 313 calories, 13 g protein, 50 g carbohydrates, 8 g fat, 0 mg cholesterol, 1023 mg sodium, 839 mg potassium.