In a large bowl, mix cream cheese, sour cream, mayonnaise, lemon juice, Worcestershire sauce, dry mustard, and garlic salt until smooth.
Stir in 2 tbsp of shredded cheddar cheese.
Fold crab meat into the mixture.
Pour mixture into a 1 quart casserole dish.
Top with remaining cheese, or more. But not too much because you don't want the cheese to overtake the taste of the crab.
Sprinkle Old Bay Seasoning on top of the crab dip sparingly.
Bake at 325 degrees Fahrenheit for approximately 30 minutes or until the top is browned.
Serve with crackers, toasted bread, celery sticks, or parmesan crisps. And of course keep the Old Bay Seasoning handy for extra shakes!