Preheat oven to 350°F. Lightly grease a small baking dish.
In a medium bowl, mix together cream cheese, sour cream, Parmesan and Romano cheese, garlic, basil and garlic salt. Add salt and pepper to taste. Gently stir in artichoke hearts and spinach.
Transfer mixture into prepared baking dish. Top with mozzarella cheese and bake 25 minutes until bubbly and lightly browned.
Cut the top off the Hawaiian loaf, and remove the center leaving a 3/4" shell.
Cut the top and the insides of loaf into bite sized squares for dipping.
Carefully spoon heated dip into bread bowl. Serve with bread squares.