In a large bowl combine sour cream, lemon juice, garlic salt, ½ cup mozzarella cheese, cream cheese, mayonnaise, Worcestershire sauce, sugar, and milk. Mix well to combine and stir in the imitation crab meat. You can also add in any vegetables you may want, I added a little bit of sliced celery and onion.
Spoon into a greased casserole dish, top with the remaining cheese.
Place into the oven and Bake for 30 minutes or until the cheese is golden brown and the casserole is bubbly.