Sweet Potato Casserole

Name: Sweet Potato Casserole
Ingredients: 3 cups firmly packed unseasoned mashed sweet potatoes (about 3 pounds) (see headnote); 1/2 cup firmly packed light brown sugar; 1/2 cup fresh orange juice; 4 tablespoons (1/2 stick) butter, melted; 2 tablespoons fresh lemon juice; 2 teaspoons finely grated orange zest; 1/2 teaspoon freshly grated nutmeg or 1/4 teaspoon ground nutmeg; 1/4 teaspoon ground cinnamon; 1/4 teaspoon ground ginger; 1/4 teaspoon salt, or to taste; 1/4 teaspoon black pepper, or to taste