1. Heat a large Dutch oven over medium-high heat. Coat pan with cooking spray. Add turkey and sirloin to pan; cook 5 minutes or until browned, stirring to crumble. Add 2 cups onion and garlic; cook 5 minutes or until onion is tender, stirring occasionally. Stir in 1 cup water and next 12 ingredients (through puree); bring to a boil. Cover, reduce heat, and simmer 45 minutes. Place about 1/2 cup spaghetti into each of 6 bowls. Ladle 1 cup chili into each bowl. Top each serving with 4 teaspoons remaining onion, 2 tablespoons cheese, and 2 1/2 tablespoons beans. Serve with crackers, if desired.