Here's my meatball recipe:
1 lb ground beef (can also use turkey or chicken)
1/2-2/3 cup dry breadcrumbs (I used seasoned breadcrumbs)
1/4 cup milk
1/4-3/4 tsp salt (optional)
1/2 tsp worcestershire sauce
1 small onion, chopped - appx 1/4 cup (I sub 1/2 tsp onion powder)
Combine all ingredients and shape into 20-24 meatballs 1-1 1/2 inches each. (I make mine big so it yeilds less.) Place on ungreased pan (I use a cookie sheet lined with foil for quick cleanup)and bake 20-25 mins at 350 degrees. Turn halfway through if desired.