Preparation Preheat oven to 375°F. Sprinkle lamb on all sides with salt and pepper. Heat oil in heavy large pot over high heat. Add lamb; cook until brown, turning occasionally, about 10 minutes. Transfer to plate. Add 1 tablespoon butter to drippings in pot. Add onion, carrots, parsnips, thyme and garlic. Sauté until vegetables soften and begin to brown, about 8 minutes. Add wine; boil until reduced almost to glaze, about 4 minutes. Return lamb to pot, arranging in single layer. Add stock, orange, cinnamon and 1 teaspoon fennel seeds; bring to boil. Place pot in oven. Braise lamb uncovered until tender, turning and basting often, about 2 hours 15 minutes. Meanwhile, rub cut sides of squash with 1 tablespoon butter; sprinkle with salt and pepper. Arrange squash, skin side down, on baking sheet. Roast on sheet alongside lamb until tender, about 1 hour 15 minutes. Scrape squash from skins into bowl; add nutmeg and 2 tablespoons butter. Mash with fork until almost smooth; season with salt and pepper. Transfer lamb to plate. Strain braising liquid into bowl; spoon off fat, if desired. Return liquid to pot. Add fresh fennel, orange peel and 1 teaspoon fennel seeds. Simmer until fennel is tender and sauce is thick enough to coat spoon, about 15 minutes. Return lamb to sauce. Rewarm lamb shanks, covered, over medium-low heat, about 15 minutes. Rewarm squash in saucepan over low heat, stirring often, about 10 minutes. Chard and final preparation: While lamb and squash heat, cut out center stem from chard leaves; discard stems. Coarsely tear leaves. Melt butter in heavy large skillet over high heat. Add chard and toss until chard wilts, about 4 minutes. Season with salt and pepper. Divide squash and chard among 4 plates. Arrange lamb atop vegetables; spoon sauce with fennel over.
Preparation Preheat oven to 375°F. Sprinkle lamb on all sides with salt and pepper. Heat oil in heavy large pot over high heat. Add lamb; cook until brown, turning occasionally, about 10 minutes. Transfer to plate. Add 1 tablespoon butter to drippings in pot. Add onion, carrots, parsnips, thyme and garlic. Sauté until vegetables soften and begin to brown, about 8 minutes. Add wine; boil until reduced almost to glaze, about 4 minutes. Return lamb to pot, arranging in single layer. Add stock, orange, cinnamon and 1 teaspoon fennel seeds; bring to boil. Place pot in oven. Braise lamb uncovered until tender, turning and basting often, about 2 hours 15 minutes. Meanwhile, rub cut sides of squash with 1 tablespoon butter; sprinkle with salt and pepper. Arrange squash, skin side down, on baking sheet. Roast on sheet alongside lamb until tender, about 1 hour 15 minutes. Scrape squash from skins into bowl; add nutmeg and 2 tablespoons butter. Mash with fork until almost smooth; season with salt and pepper. Transfer lamb to plate. Strain braising liquid into bowl; spoon off fat, if desired. Return liquid to pot. Add fresh fennel, orange peel and 1 teaspoon fennel seeds. Simmer until fennel is tender and sauce is thick enough to coat spoon, about 15 minutes. Return lamb to sauce. Rewarm lamb shanks, covered, over medium-low heat, about 15 minutes. Rewarm squash in saucepan over low heat, stirring often, about 10 minutes. Chard and final preparation: While lamb and squash heat, cut out center stem from chard leaves; discard stems. Coarsely tear leaves. Melt butter in heavy large skillet over high heat. Add chard and toss until chard wilts, about 4 minutes. Season with salt and pepper. Divide squash and chard among 4 plates. Arrange lamb atop vegetables; spoon sauce with fennel over.