In a large skillet over medium heat, heat olive oil. Sauté diced onion until translucent, about 5 minutes. Add minced garlic and cook for another minute.

Add ground beef to the skillet. Cook until browned, about 6-8 minutes, seasoning with salt and pepper.

Meanwhile, boil salted water in a separate pot and cook pasta according to package instructions until al dente. Drain and set aside.

Pour vegetable broth into the skillet with cooked beef and stir in heavy cream. Simmer for about 3 minutes until slightly thickened. Stir in Parmesan cheese until melted.

Combine cooked pasta with the sauce in the skillet, stirring gently to coat evenly. Adjust seasoning if necessary.

Serve immediately with extra Parmesan on top.