If using beef and lamb, mix together, carefully.
Add remaining ingredients and mix together.
As far as herbs, if you don't have oregano, use rosemary.
Do a "taste test" by frying two tablespoons or so of meat mixture. Adjust seasonings as needed.
Form meatballs. I use an scooper to make a uniform meatball.
Bake at 400 degrees for approximately 20 minutes. Check at 15 minutes. Don't over bake.
While baking, prepare pistachio pesto.
Can be refrigerated for three days.
Can be frozen.
This makes 18 medium sized meatballs.