Sweet Potato And Pepita Stuffing

Name: Sweet Potato And Pepita Stuffing
Ingredients: 2 sweet potatoes, peeled and cut into 1?2-inch pieces; 1 tablespoon olive oil; kosher salt and black pepper; 6 tablespoons unsalted butter, plus more for the baking dish and foil; 1 large loaf Italian bread (about 1 pound), cut into 3?4-inch pieces (about 16 cups); 2 medium onions, chopped; 4 celery stalks, thinly sliced; 1/2 cup dry white wine; 2 1/2 cups low-sodium chicken broth; 2 large eggs, beaten; 1/2 cup pepitas (roasted and hulled pumpkin seeds); 3 tablespoons chopped fresh sage