In a 3-quart saucepan, heat the chicken broth, carrots, potatoes, celery, onion and seasoning mix to boiling; reduce the heat. Cover and simmer for 5 minutes.
Stir in the chicken and parsley; return to a boil.
Meanwhile, stir together the flour, baking powder and salt. Cut in the butter with a pastry blender until the mixture resembles fine crumbs.
Stir in the cottage cheese and milk just until moistened. Drop the dough by 6 spoons onto the hot chicken or vegetables in the boiling soup (do not drop directly into the liquid).
Reduce the heat to a simmer and cook uncovered for 10 minutes. Cover and cook for 10 minutes longer or until a toothpick inserted in the center of a dumpling comes out clean.
Ladle the soup and dumplings into bowls, and serve.