For the pizza rounds divide the dough into 4 equal portions.
On floured surface roll and stretch each piece into approximately 8" rounds.
On a very hot grill place each round directly in the grill and cook until the bottom is browned and crispy. If not using right away you can grill both sides and set aside until ready to use. They make great flat breads for dipping into sauces, especially yummy added to a saucy pasta meal.
Remove rounds from the grill.
On the cooked side of the pizza round spread equal amounts of mashed potatoes, Brussels sprout next, crumbled meatloaf then top with cheese.
Place pizzas back on the grill and cook until under side is brown and crispy and cheese has melted.
Serve with some chow chow pickles if you wish
Recipe by SEA SALT GALLEY KAT at https://www.seasaltgalleykat.com/pizza/meat-n-potatoes-pizza/