Preheat oven to 400°F.
In a medium-sized mixing bowl, stir together cream cheese, sour cream, mayo and Worcestershire until thoroughly combined. Stir in cheese and artichokes. Season to taste with kosher salt, pepper and lemon juice.
Spray a baking dish or small cast iron pan with cooking spray. Spread half the dip mixture into pan, gently top with crab, then spoon the remaining dip onto crab so it's completely covered.
Bake for 25-30 minutes or until bubbling hot and starting to lightly brown. Serve immediately (careful, it will be VERY hot) with crunchy crostini or bread slices.
