Cook the pasta according to package instructions, usually around 8–10 minutes until al dente. Drain and set aside.

In a large skillet, heat olive oil over medium heat. Sauté garlic and onion for 3–4 minutes until fragrant.

Add the lean ground beef, breaking it apart as it cooks. Brown for about 6–8 minutes.

Stir in the diced tomatoes and bring to a gentle simmer. Cook for an additional 5–7 minutes.

Lower the heat and mix in the Greek yogurt and Parmesan cheese until smooth.

Fold the cooked pasta into the creamy beef mixture, seasoning with salt and pepper.

Serve immediately, garnished with extra Parmesan cheese if desired.