Preheat oven to 350 degrees F.
Spray a 13X9 inch loaf pan with non-stick cooking spray. Set aside.
In a large bowl, combine ground beef and pork sausage. Use your hands or a large, sturdy spoon. Set aside.
In a medium bowl, combine bread crumbs and milk. Allow the milk to soak into the bread crumbs until most of the liquid is absorbed.
Combine the meat, bread/milk mixture with the remaining ingredients (minus the ketchup) and stir until well incorporated.
Gently pat the meat mixture into a loaf and place in prepared pan.
Bake, uncovered at 350 degrees for 50 minutes. After 50 minutes, pour 1/2 cup ketchup over the top of the meatloaf in the pan. Cover with aluminum foil and continue to cook for another 10-15 minutes or until the meatloaf is completely cooked.
Allow to cool for 10 minutes before gently removing from the pan and cutting into slices for serving.