Porky Pot Pie with Cheesy Drop Biscuits

Name: Porky Pot Pie with Cheesy Drop Biscuits
Ingredients: 3 pounds boneless pork shoulder, cut into 1 1/2-inch pieces; Kosher saltand ground black pepper; 2 tablespoons olive oil; 1 red onion, cut into medium dice; 4 cloves garlic, chopped; 1 tablespoon dried oregano; 4 tablespoons (1/2 stick) unsalted butter; 1/2 cup flour; 1/2 cup cognac; 6 cups chicken broth or stock; 1/2 cup heavy cream; 3 cups chopped kale; 4 medium carrots, cut into 1-inch pieces; 1 pound small red potatoes, halved; 1 1/4 cups all-purpose flour; 3/4 cup yellow cornmeal; 2 tablespoons baking powder; 2 tablespoons sugar; 3/4 cup milk, plus for brushing; 1 large egg, lightly beaten; 3/4 cup grated Monterey Jack; 3 tablespoons unsalted butter, melted