Preheat your oven to 350 degrees
Microwave your frozen Philly Sub Bun in the press n' seal for 45 seconds until soft
Melt your butter for 15 seconds in the microwave
Mix in Garlic Salt into your melted butter
Open your Sub Bun (face up) , using a brush, coat the bread with your garlic butter
Toast your bread in the oven for 3-5 minutes or until edges start to crisp
Carefully pull your bread out of the oven and add desired layer of mozzarella cheese
Cook your garlic cheesy bread for 2-3 minutes or until the cheese has completely melted
Sprinkle with salt or parmesan cheese if you ilke and ENJOY!!!