Preheat the oven to 375°F (190°C). Line a baking sheet with foil.
2. Step
Place the meatballs on the prepared baking sheet. Bake for 30 minutes, or until the internal temperature reaches 165°F (75°C).
3. Step
Bring 4 quarts (4 liters) of salted water to a boil in a large pot. Add the tagliatelle and return the water to a boil. Cook uncovered, stirring occasionally, until the pasta is tender, about 9 minutes. Remove from the heat and strain.
4. Step
In a medium saucepan over medium heat, bring the alfredo sauce to a simmer.
5. Step
Serve the pasta with the meatballs, sauce, and Parmesan.