In large bowl combine ground beef and Italian sausage until well blended. Add remaining ingredients except for cheese ... once ingredients are well blended, place meat mixture on waxed paper and flatten into oblong shape approx 1/2 thick. In center of flattened meat place string or cubed cheese down entire center. Roll meat pressing and shaping into a loaf. Carefully place loaf into baking dish or roaster sprayed with non stick cooking spray and about 1/3 cup of water. Bake at 325 degrees for approx. 45 minutes to 1 hour .. until meat is nicely browned.
Remove from oven and with back of spoon cover entire meatloaf with ketcup,bbq sauce and brown sugar mixture ... return to oven uncovered for approx. 15 - 20 minutes. Remove from oven and let sit for approx. 5 minutes before cutting into .