Preheat oven to 400°F. Line a rimmed baking sheet with parchment paper and set aside.
Place all ingredients except mozzarella cheese in a large bowl. Using clean hands, mix ingredients to combine, but do not overwork the mixture. *Working them too much can cause tough meatballs.
Using a 4 tablespoon (2-ounces) scoop, scoop out meat and place on a baking sheet or plate. After all meatballs have been scooped onto a tray, with damp hands roll them into balls. Place balls back on tray or plate. One at a time place meatball in the palm of your cupped hand. Press mozzarella cube into the meatball and roll back into a ball.
Place meatballs on the prepared baking sheet, not touching. Bake for 20-25 minutes, until meatballs are browned and no longer pink in the middle.
Serve immediately or place meatballs into your sauce and simmer until ready to serve. Some of your mozzarella cheese may have tried to make a run for it. Just scoop up the meatballs and cook it in the sauce.
Serve and enjoy!
Notes
I use hot Italian sausage links, with the casings removed. Ground Italian sausage works too.
You can substitute dried herbs and spices for fresh - 1 tablespoon dried Italian seasoning for the fresh herbs, 1 teaspoon garlic powder for the fresh garlic, 1 teaspoon onion powder for the fresh onion.
Nutrition note: Because serving sizes can vary, nutrition shown is for one meatball.