Preheat your oven to 350°F (175°C).

In a large mixing bowl, combine the softened cream cheese and sour cream.

Stir in the shredded cheddar cheese until well combined.

Gently fold in the lump crab meat.

Add the mayonnaise, Worcestershire sauce, garlic powder, Old Bay seasoning, and chopped green onions.

Season with salt and pepper to taste.

Spoon the mixture into a 9-inch baking dish and spread it evenly.

Bake for 25-30 minutes, or until golden and bubbly.

For an extra crispy top, broil the dip for the last 2-3 minutes of baking.