Preheat oven to 350°F (180°C). Spray 8 x 4 inch (20 x 10cm) loaf pan with vegetable cooking spray. Combine catsup, brown sugar and mustard in small bowl; mix well. Set aside. Combine ground sirloin, bread crumbs, Mrs. Dash® Garlic & Herb Seasoning Blend, onions, beaten eggs or egg substitute and half of catsup mixture in large bowl; mix well. Pat into prepared loaf pan. Bake 40 minutes. Spread remaining sauce over meat. Return to oven and cook additional 10 minutes. Let stand 5 minutes before serving.