Preheat the oven to 400 degrees F.
For the Hash: Mash 1 cup of the sweet potatoes in a large bowl. Then stir in the turkey, chicken broth, cilantro, chipotles in adobo, garlic, egg white, 1/4 cup of the cheese, the remaining 1/2 cup chopped sweet potatoes, 2 teaspoons of salt and a few grinds of pepper.
Heat 2 tablespoons of the butter and 1/2 teaspoon of the coriander in an ovenproof 10-inch nonstick skillet over medium heat. Add the potato mixture and spread it evenly in the skillet, pressing lightly to form a solid cake. Cook, shaking the skillet occasionally, until the bottom is set, about 3 minutes.
Put a large plate over the skillet and invert so the hash falls onto the plate. Return the skillet to the heat and melt the remaining 1 tablespoon butter with the remaining 12 teaspoon coriander. Slide the hash back into the skillet cooked side up (if it breaks apart, simply reshape it into a solid cake). Cook, shaking the skillet occasionally, for 2 minutes.
Transfer the skillet to the oven and bake the hash until firm, about 10 minutes. Carefully invert or slide the hash onto a serving plate and scatter the remaining 14 cup cheese, the cilantro leaves, and the scallion over the top.
Serve with Chipotle Cranberry Sauce (See Below) if using.
For Cranberry Sauce: Whisk together the cranberry sauce, chiles, lime juice and lime zest in a small bowl. Season with salt and pepper.
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2/3 cup; Active Time: 5 minutes