01 -  Preheat the oven to 350°F. 
 02 -  In a large mixing bowl, combine cream cheese, sour cream, and mayonnaise. Beat until smooth and creamy using an electric mixer or whisk. 
 03 -  Stir in the mozzarella, cheddar, and Parmesan cheeses until evenly incorporated. 
 04 -  Fold in the lump crab meat, red bell pepper, green onions, and minced garlic. 
 05 -  Sprinkle in Cajun seasoning, smoked paprika, cayenne pepper (if desired), Worcestershire sauce, salt, black pepper, and lemon juice. Mix gently until just combined. 
 06 -  Lightly grease a 1-quart baking dish. Spread the crab mixture evenly into the dish. 
 07 -  Bake for 20 to 25 minutes, until dip is bubbly and the top is golden brown. 
 08 -  Let cool for 5 minutes. Serve warm with toasted baguette slices, crackers, or fresh vegetable crudités.