For a cheesy delight, look no further than Petrolia Pizza’s Cheese Sub (availability not confirmed). This sub features a toasted Italian sub roll generously filled with melted cheese. While the exact type of cheese Petrolia Pizza uses remains a mystery, they likely choose a melty and flavorful option that complements the bread perfectly.

Mozzarella is a common choice for cheese subs, offering a gooey stretch and mild flavor. They might also use a combination of cheeses, like provolone for a sharper bite or cheddar for a richer taste.