01 -
Prepare the mashed potatoes and Italian meatballs with marinara sauce according to their respective recipes.
02 -
Preheat the oven to 350°F.
03 -
Lightly spray a 9x13-inch casserole dish or equivalent baking vessel with cooking spray.
04 -
Layer the prepared mashed potatoes evenly on the bottom of the dish, then arrange the meatballs with sauce uniformly on top.
05 -
Place the assembled dish in the oven and bake for 20 minutes to heat through.
06 -
Sprinkle shredded mozzarella cheese evenly over the meatballs, then bake for an additional 10 minutes or until the cheese melts and begins to brown.
07 -
Remove from oven, garnish with chopped fresh parsley, and serve warm.