Chicken Salad 2

2.5 c chicken about 3 chicken breasts (boiled in chicken broth and shredded)
1 cup thinnly sliced celery
1 cup halfed grapes
2-3 sliced green onion
2 tablespoons parsley
1 cup mayo
1 tablespoon lemon juice
1 tablespoon Vinegar

1 teaspoon onion powder
1 1/2 teaspoon mustard (out of fridge)
salt and pepper
12 Croissants to serve on