Preheat oven to 375°F (190°C) and prepare a loaf pan.
Mix ground beef, pork, spices, breadcrumbs, eggs, salt, and pepper gently.
Combine cream cheese, cheddar, jalapeños, and bacon for the filling.
Layer half the meat, spread the cheese mixture, then top with remaining meat, sealing edges.
Bake 45–55 minutes until 160°F; let rest 10 minutes.
Whisk ranch, sour cream, and optional lime/herbs; drizzle over slices before serving.