Make your pizza crust according to the package directions.
Roll the dough out until it is 1/8 to 1/4 inch thick.
Use the band from the mason jar to cut the dough like a cookie cutter.
Place your dough inside of greased mason jars that are on a cookie sheet.
Add the toppings of your choice to each jar and put shredded cheese on the top.
Bake these jars in a 425 degree oven for 10-15 minutes.
Allow mason jar pizzas to cool slightly before serving.