In a small bowl combine the chili sauce, the brown sugar, dry mustard, and ground allspice. (Turn the bottles of chili sauce upside down to capture all the sauce, you’ll have about 1-¼ cups per bottle.) Stir well, making certain the brown sugar and spices are mixed together.
In a large bowl add the eggs, the half and half, the breadcrumbs*, chopped onions, parsley, kosher salt, black pepper, dried sage, lemon pepper, 2 cups of the tomato-based sauce, and the ground meat. Using a large spoon or your hands, gently mix together and until the mixture is well combined.
Divide the meatloaf mixture between two loaf pans or small baking dishes that have been sprayed with a cooking spray. Shape into loaves then smooth the tops. Spread the remaining tomato-based sauce over the tops.
Bake at 350-degrees for 1 hour or until the internal temperature is 160-degrees. Let the meatloaf rest for about 10 minutes before serving.