To prepare the sliders: Form the meat into 8 balls about the size of golf balls.
Heat a cast-iron skillet over high heat. Working in batches, add the meatballs to the skillet and immediately smash them firmly with a spatula until they are flat and about 3 inches in diameter. Season with a little of the salt and pepper and cook for 1 minute, then flip and smash the burgers with the spatula again. Top each with a tablespoon of marinara and a tablespoon of mozzarella. Cover the pan and cook for another minute to allow the cheese to melt and the patties to cook to desired doneness.
Smear a little of the aioli onto the bottom half of each toasted ciabatta roll. Place a patty on the roll, top with 2 basil leaves and the other half of the roll and serve.
Nutrition information per serving:
Calories226Fat9 gSodium515 mg
Carbohydrates19 gSaturated fat3 gCalcium97 mg