Chicken with ribs

6 medium celery ribs , trimmed 4 medium carrots , peeled and trimmed 1/2 head green cabbage 3 medium shallots , peeled, halved, and thinly sliced 1/4 cup red[...]

3 tablespoons plain greek-style nonfat yogurt 2 tablespoons mayonnaise (I prefer Hellmans) 1 tablespoon brown sugar 1 tablespoon low sodium soy sauce 1[...]