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| chicken breasts: 2 breasts |
| grapes: 3/4 cup |
| green grapes: 3/4 cup |
| celery (chopped): 1/2 cup |
| nonfat plain yogurt: 1/4 cup |
| walnuts (chopped): 1/4 cup |
| red wine vinegar: 1 1/2 Tbl |
| orange juice: 1 1/2 Tbl |
| onion powder: 1/2 tsp |
| paprika: 1/2 tsp |
| chili powder: 1/2 tsp |
| salt: 3/4 tsp |
| cooking spray |
Credit: Food.com