Holiday Cheese Ball
["2 (8 oz.) pkg. cream cheese (room temperature)", "1/2 lb. Cheddar cheese, grated", "1 small onion, chopped finely", "1/2 Tbsp. Worcestershire sauce", "1/2 tsp. salt", "1/4 tsp. celery salt", "1 c. walnuts, finely chopped"]
["Combine all ingredients, except nuts.", "Chill 3 hours.", "Shape into ball and roll in chopped nuts.", "Chill until firm."]
["cream cheese", "Cheddar cheese", "onion", "Worcestershire sauce", "salt", "celery salt", "walnuts"]