English Muffin Pizzas •English muffins •Pizza sauce -or- Marinara sauce (pesto is also tasty!) •Pepperonis •Spinach, chopped or ripped •Mozzarella cheese, shredded •Italian seasoning Preheat your toaster oven to 425 (or use your large oven if making many). Line a toaster oven safe tray or cookie sheet (for oven use) with foil.