Combine green onions, mayo, egg, parsley, Old Bay seasoning, dijon mustard, worcestershire sauce, lemon juice, salt, and pepper in a bowl. Whisk together with a fork.
4 green onions, 1/4 cup mayonnaise, 1 large egg, 1 Tablespoon chopped fresh parsley, 1 1/2 teaspoons Old Bay seasoning, 1 teaspoon dijon mustard, 1 teaspoon worcestershire sauce, 1 teaspoon fresh lemon juice, 1/4 teaspoon table salt, 1/8 teaspoon ground white pepper