Nutty Cream-Cheese Stuffed Celery

1 lb cream cheese, at room temperature (2 8oz pkgs)
2 Tbsp milk
1 Tbsp Worcestershire sauce
1 1/3 c walnuts, chopped
1/2 tsp onion salt
1/2 tsp black pepper
1 bunch celery, trimmed and rinsed

In medium sized bowl, with an electric mixer on medium speed, beat together cream cheese, milk and Worcestershire sauce until smooth, about 2 minutes. Stir in the walnuts, salt and pepper until thoroughly blended. Cut celery ribs into 3" pieces. Fill each with about 1 Tbsp of the filling. Arrange the celery on a serving platter. Cover loosely with plastic wrap. Refrigerate until ready to serve.
Makes about 3 1/2 dozen