Preheat the oven to 200 degrees F.
For the haricots verts: Bring a medium saucepan of salted water to a boil. Add the haricots verts and cook until bright green and crisp-tender, 3 to 4 minutes. Use a slotted spoon to remove to a salted ice bath. Let sit until completely cool. Drain and pat dry. Set aside.
For the butternut squash and cranberry stew: Add the squash and cinnamon stick to a large, high-sided skillet. Add the orange juice and water to cover by 1 inch. Season with a large pinch of salt. Bring to a simmer and cook until the squash is just tender and the liquid has reduced some, 10 to 12 minutes.
Heat another large, high-sided skillet over medium heat and add the butter. When melted, add the shallots and cook, stirring frequently, until soft and translucent, about 4 minutes. Stir in the cranberries. Add the cooked butternut squash, with liquid, and stir to combine. Add salt to taste. Keep warm.
For the sausage veloute: Melt the butter in a medium saucepan over medium-low heat. Add the flour and cook, stirring, until completely absorbed, 1 to 2 minutes. Whisk in the chicken stock, raise the heat to medium and bring to a low simmer. Cook, stirring, until the sauce is thick enough to coat the back of a spoon. Remove from the heat.
Meanwhile, heat a medium skillet over medium-high heat. Add the sausage and cook, stirring and breaking it into pieces, until just browned. Stir in mushrooms and cook for 3 minutes. Add the sausage-mushroom mixture to the veloute. Keep warm.
For the turkey Milanese: Whisk together the milk and eggs in a medium baking dish, until thoroughly combined. Put the breadcrumbs and the flour each in a separate medium baking dish.
Sprinkle the turkey cutlets with the poultry seasoning and some salt. Bread the cutlets using the standard breading procedure: Coat in the flour, shaking off any excess. Then dip in the egg and milk mixture. Next, coat in breadcrumbs, shaking off any excess. Put on a large plate.
Heat a 1/4 inch of oil in large, high-sided skillet over medium heat. When the oil is shimmering, add a breaded cutlet and cook until golden brown on both sides and cooked through, 4 to 5 minutes per side. Remove to a rack on a baking sheet and season with salt. Keep warm in the oven. Repeat with the remaining two cutlets.
Finish the haricots verts: Heat a medium skillet over medium-high heat. Add the oil and garlic and cook, stirring, until the garlic is fragrant, about 2 minutes. Remove and discard the garlic. Add some crushed red pepper and the cooked haricots verts to the pan and toss to coat in the oil. Cook until heated through. Season to taste with salt.
Serve the turkey cutlets with the butternut squash and cranberry stew, the sausage veloute and the haricots verts.