In a mixing bowl, thoroughly combine the softened cream cheese, sour cream, minced garlic, and Italian seasoning. Incorporate the chopped imitation crab meat, scallions, and shredded mozzarella cheese into the mixture. Adjust seasoning by adding salt and pepper according to preference (a guideline amount is ½ teaspoon salt and ¼ teaspoon pepper). The resulting filling should yield approximately 2 cups.