Heat a large Dutch oven over medium-high heat. Add lamb, beef, and 1/4 teaspoon salt; cook 5 minutes or until browned, stirring to crumble. Remove lamb mixture from pan. Add squash, onion, and garlic to pan; cook 3 minutes, stirring occasionally. Add tomato paste and next 4 ingredients (through cinnamon); cook 1 minute, stirring frequently. Stir in remaining 1/4 teaspoon salt and stock; bring to a boil. Stir in kale; cook 1 minute or until kale begins to wilt. Stir in lamb mixture. Cover and bake at 450° for 15 minutes. Sprinkle with chopped parsley.