Meatball Sliders with a Twist

Name: Meatball Sliders with a Twist
Ingredients: 1 cup toasted almonds or walnuts; 2 cloves garlic; 1 cup panko breadcrumbs or matzo meal; 1 cup shredded Parmesan, plus more for serving; 2 tablespoons dried parsley; Kosher salt and freshly ground black pepper; 2 large eggs; 3 1/2 cups (28 ounces) tomato sauce of your choice; Flavorless oil, like canola or vegetable, for frying; 12 ounces fresh mozzarella, sliced 1/4 inch thick; 1 bunch fresh basil leaves; 6 slider rolls, toasted; Chopped fresh parsley or basil, for serving