To make the meatballs, combine the panko and milk or buttermilk in a large bowl and let soak for 10 minutes.
¼ cup milk or buttermilk, ½ cup panko
Add the rest of the ingredients to the bowl and gently mix with your hands.
½ ounce parmesan cheese, 1 tablespoon parsley, 1 teaspoon salt, ¼ teaspoon black pepper, 2 tablespoon pine nuts,, 1 egg, 1 pound ground beef, 1 clove garlic
Using a large scoop (about ¼ cup), form meatballs into large rounds and place on a plate or clean cutting board while you form all the meatballs. This should make 10 to 12 large meatballs.
Place the meatballs gently into the tomato sauce, cover the pan, and keep at a slow simmer for 30 minutes. Once or twice, gently turn the meatballs so they are covered in sauce, and scrape the pan bottom. The meatballs should have an internal temperature of >165°F when done.
Counting backwards from the end of the 30 minutes, cook your spaghetti or other pasta per directions. That is, if your spaghetti is supposed to take 12 minutes to cook, have the pasta water boiling so that you can put the spaghetti in the pot after the meatballs have been cooking for 18 minutes.
1 pound spaghetti or other long pasta