Preheat oven to 375°F. Using a serrated knife, gently cut loaf of bread lengthwise and then widthwise without cutting through to the bottom crust, creating 1-inch squares. Place bread on a foil-lined baking sheet.
In a medium microwave-safe bowl, combine cream cheese and Cheddar Ale Cheese Ball Mix. Microwave on HIGH 30 seconds; stir. Fold in 1 cup shredded cheese. Using a spoon, stuff cheese mixture between each row of bread, gently spreading apart sections as you go.
Brush outside of loaf with melted butter. Sprinkle with Rustic Herb Seasoning.
Cover with foil, and bake 15 minutes. Remove foil. Sprinkle top with remaining ½ cup shredded cheese; continue baking 5-10 minutes or until cheese is melted and golden brown.