Cook the fettuccine according to package instructions; drain and set aside.
In a large skillet, heat olive oil over medium heat.
Season the chicken with salt and pepper and add to the skillet; cook until browned.
Remove the chicken and set aside.
Add garlic and sun-dried tomatoes to the skillet and sauté for 1 minute.
Pour in the heavy cream and bring to a simmer.
Stir in the Parmesan cheese until melted.
Add the cooked fettuccine, spinach, and chicken back into the skillet; toss to combine.
Cook for an additional 2-3 minutes until everything is heated through.
Serve and enjoy your Tuscan Chicken Pasta!