Cook the Pasta:
Bring a large pot of salted water to a boil. Add pasta and cook according to package instructions until al dente. Drain and set aside.

Prepare the Beef:
In a large skillet over medium heat, add olive oil and butter. Add the chopped onion and garlic, sautéing until softened and translucent. Add the ground beef, cooking until browned. Season with salt, pepper, and paprika.

Make the Sauce:
Pour in the beef broth and heavy cream, stirring to combine. Bring the mixture to a simmer and let it reduce slightly, about 5-7 minutes. Adjust seasoning with more salt and pepper if needed.

Combine the Ingredients:
Add the cooked pasta to the skillet, tossing to coat pasta evenly with the creamy sauce. Cook for another 2-3 minutes to let the flavors meld together.

Serve:
Remove from heat and garnish with fresh parsley and optional grated Parmesan. Serve hot.