In a large mixing bowl add the meats and blend together with your hands.
Add the onion, parsley, pepper, and garlic salt. Mix again with your hands until all the seasonings are well blended with the meat.
In a bowl beat the eggs until well beaten. While mixing the egg into the meat mixture, add the bread crumbs 1/2 cup at a time until the meat begins to feel slightly firm.
Form the meat into 1 1/2" balls with your hands.
Gently place in cooking pan so that the meatballs are close but not touching.
Cook in pre-heated oven at 450 degrees Fahrenheit for 10 minutes or until browned.
The meatballs will not be fully cooked yet.
Add meatballs to your favorite sauce and simmer for one hour. (I usually use my Grandmother's sauce recipe, since this was her meatball recipe. I posted it under Spaghetti Sauce #79000 for anyone who would like it.).