Preheat the oven to 400°F. Line a baking sheet with foil and spray with non-stick cooking spray.
In a large bowl, combine the meat, egg, breadcrumbs, cheese, onion, garlic, salt, pepper, and parsley, if using.
Use a medium cookie scoop or spoon to scoop the meat mixture. Form into 1 1/2-inch balls and place on the baking sheet.
Bake uncovered 17 to 20 minutes, or until no longer pink in the middle. Turn halfway through, so the bottoms don't brown.
Optional Way to Serve
Simmer meatballs with marinara sauce, if desired, for 10 minutes.
Serve meatballs on their own or serve over spaghetti noodles. Top with parmesan cheese and fresh herbs, if desired.
Notes
How to fry meatballs:Fry meatballs in a pan with 2 Tablespoons oil over medium-high heat for 7 to 10 minutes, or until cooked through. Flip every few minutes to prevent burning.Substitutes:
You can use 1/2 teaspoon garlic powder and onion powder if you do not have fresh garlic and onions. You may also use 2 teaspoons dried parsley if you do not have fresh.
If I have pork on hand, I like to use 1/2 pound ground beef and 1/2 pound ground pork. It creates juicier meatballs. You can also do half ground beef and half ground turkey to cut back on fat.
Storage and freezer instructions: Store in a covered container in the fridge for up to 3 days. Store in a freezer container up to 3 months. Place in the fridge overnight to thaw and then reheat on the stove top over medium-low heat until warm.