Preheat your oven to 375°F (190°C). Lightly grease a loaf pan or line a baking sheet with parchment paper for easy cleanup.
In a large mixing bowl, combine the ground beef, breadcrumbs, egg, smoked paprika, garlic powder, onion powder, salt, and black pepper. Mix gently with your hands or a spoon until just combined—do not overmix. Add the softened cream cheese, shredded cheddar cheese, and diced jalapeños to the bowl. Mix again until evenly distributed throughout the meat mixture.
Transfer the meatloaf mixture to the prepared loaf pan or shape it into a loaf on the baking sheet. Press it firmly into place to ensure it holds its shape during baking.
Place the meatloaf in the preheated oven and bake for 50–60 minutes, or until the internal temperature reaches 160°F (71°C). If desired, broil the top for 2–3 minutes at the end of baking to achieve a golden crust.
While the meatloaf bakes, prepare the ranch drizzle. In a small bowl, whisk together the sour cream, buttermilk (or milk), dried dill, garlic powder, onion powder, salt, and pepper. Adjust the consistency by adding more buttermilk if needed. Taste and adjust seasoning as desired.
Remove the meatloaf from the oven and let it rest for 5–10 minutes before slicing. This helps the juices redistribute for a moist result. Slice the meatloaf and serve warm with a generous drizzle of the creamy ranch sauce on top. Garnish with extra shredded cheddar or chopped jalapeños if desired.
