I'm a big fan of super crispy pizza crusts. Shredded hash browns provide that perfect base for a crispy, crunchy bottom of a breakfast or anytime pizza. All you need is a bag of frozen shredded hash browns and the almighty waffle maker. Image by El Gran Dee.
This idea comes from Curls & Whey. The recipe calls for frozen hash browns, but you could also prepare and grate your own shredded potatoes (make sure the moisture is extracted), or use leftover or frozen potato gems. Mix it with two egg whites or just one whole egg, and any toppings your pizza-loving heart desires. Then press the mixture in your waffle iron for five to 10 minutes (cooking time will vary).
In the recipe, they mix the toppings in with the hash browns, but you can create the hash brown-pizza crust first, top it and then bake it at 220C in your oven until the cheese melts. Note that the site Curls & Whey uses very precise measurements and lower fat ingredients for their readers who are fitness competitors. You don't have to follow those measurements -- just add hash browns and the toppings you want that fit according to your tastebuds and fitness goals, if they apply.
Note that if you don't have a waffle maker, you can use your oven, too: Just bake the hash brown crust at 220C for 25-30 minutes or so.
Waffle Pizza [Curls & Whey]