In a food processor or blender, mix the cilantro, pepper, onion, and garlic until finely blended.
In a large bowl, mix together the blended vegetables, raw ground beef or turkey, quinoa, and egg. Knead meat mixture until all ingredients are fully incorporated.
Using a small ice cream scoop, scoop and shape into balls and place on a baking tray.
Once you've scooped all the mixture, place in oven and bake for 15-20 minutes, until meatballs are fully cooked. You can serve these right away or make freezer-friendly.
To make freezer-friendly: Remove from oven and chill. Transfer to a smaller and clean baking tray (one that fits in your freezer) and place cooked meatballs in a single layer. Freeze until solid all the way through. Place meatballs in a lastic baggie, dated and sealed and store in freezer until time to use.
Notes
You can also mix your ground meat with Italian sausage out of the casing. This gives the meatballs extra flavor! To reheat: pop them back in the oven for 10 minutes or in the microwave for 2-3 minutes. If you're making a sauce, just place the frozen meatballs in the sauce while it cooks.