Thaw meatballs in microwave for a few minutes. Arrange bread in a single layer in an ungreased 13-inch x 9-inch baking dish (all of the bread might not be used). Combine the cream cheese, mayonnaise and Italian seasoning; spread over the bread. Sprinkle with 1/2 cup mozzarella. Combine the spaghetti sauce and water; add meatballs. Ladle over cheese mixture; sprinkle with remaining mozzarella. Bake, uncovered, at 350°F for 30 minutes or until heated through.
Yield: 6 servings.