01 - Set oven to 375°F to ensure proper baking temperature for both the dip and crostini.
02 - In a large mixing bowl, combine softened cream cheese, mayonnaise, and sour cream. Beat until completely smooth and uniform in texture, about 2 minutes.
03 - Add Worcestershire sauce, hot sauce, Dijon mustard, garlic powder, onion powder, paprika, black pepper, salt, and lemon juice. Mix thoroughly to distribute flavors evenly.
04 - Gently fold in lump crab meat, Parmesan cheese, chives, and parsley using a spatula. Take care not to break up the crab lumps excessively.
05 - Spoon the mixture into a 1 to 1.5 quart oven-safe baking dish. Use the back of a spoon to create an even, smooth surface.
06 - Evenly sprinkle mozzarella, Parmesan, and panko breadcrumbs across the entire surface of the dip.
07 - Place in preheated oven and bake for 18 to 20 minutes, until the top is golden brown and the dip is bubbling around the edges.
08 - While dip bakes, arrange baguette slices on a baking sheet. Brush each slice lightly with olive oil. Toast in the oven for 7 to 8 minutes, turning once halfway through, until golden and crisp.
09 - Remove the baked dip from the oven and let stand for 5 minutes. This resting period allows the dip to set slightly for easier serving.
10 - Present the warm crab dip alongside toasted crostini and assorted crackers. Serve immediately while hot and bubbly.