Preheat the oven to 425 degree F. Lightly spray a 9 inch baking dish with cooking spray and set aside.In a large bowl, mix together the cream cheese, mayonnaise, sour cream and Worcestershire sauce until well combined. Stir in the artichoke hears, crab meat, spinach, green onions, and 1 cup of the cheese. Season with salt and pepper and stir to combine.Spread the mixture in the prepared baking dish and sprinkle the remaining ½ cup of cheddar cheese evenly over the top. Bake for 20-25 minutes until hot and bubbling. Serve hot.Store any leftover dip, covered tightly, in the refrigerator for up to one week.