Preheat oven to 375° and line a rimmed sheet pan with parchment paper.
Crush the Simple Mills crackers into crumbs to equal ½ cup.
Add cracker crumbs, egg, salt, pepper, onion powder, and garlic powder to large mixing bowl. Mix to combine.
Add ground beef, pork, and veal to bowl and mix together. This is where using your hands to mix works well.
Once fully combined, roll mixture to form 2” balls and place on lined sheet pan.
Bake in preheated oven for about 30 mins, or until internal temperature reaches 160°.
If desired, place cooked meatballs into a warm pot of sauce until ready to serve.