Step 1

Preheat oven to 350 degrees. Spread bread cubes on a rimmed baking sheet and bake until crisped but not golden, about 10 minutes. Let cool. In a 14-inch straight-sided skillet (or 2 large skillets), melt butter over medium-high heat. Add onions, leeks, celery, fennel, and pears; season with salt and pepper. Cook, stirring occasionally, until vegetables and pears are softened and start to turn golden, about 15 minutes. Stir in rosemary and sage.

Step 2

Meanwhile, cook sausage in a skillet over medium heat, stirring occasionally and breaking into large crumbles, until browned and cooked through, about 10 minutes. Drain on paper towels. Stir into vegetable mixture, then transfer to a large bowl. Add bread cubes and toss well. Drizzle stock over mixture, add eggs and parsley, and toss to combine well. Season with 2 teaspoons salt and 1/2 teaspoon pepper. Use 10 cups stuffing to fill bird; place remainder in a buttered 8-inch-square baking dish. After turkey is out of oven, bake at 350 degrees until heated through and top is browned, 40 to 45 minutes.