These are the English muffins I use. There are thin sliced and regular. I prefer regular.
Add a spoonful of spaghetti sauce to each muffin.
I usually use sliced mozzarella, but I ran out so I used shredded mozzarella. Use as much as you would like.
Line your toaster rack with aluminum foil.
Place the pizza on the rack.
Place it in the toaster for about 8 minutes.
When it's browning on the top and all the cheese has melted, they are done.