1. Place the chicken breasts in the bottom of your slow cooker.
2. Pour the Alfredo sauce over the chicken, ensuring each piece is well-coated.
3. Cover and cook on low heat for 4-6 hours or until the chicken is tender and fully cooked.
4. About 15 minutes before serving, cook the fettuccine according to package instructions. Drain well.
5. Just before serving, remove the chicken from the slow cooker and shred with two forks, then return to the pot and mix with the sauce.
6. Serve the chicken Alfredo over the cooked fettuccine, garnishing with fresh parsley or grated Parmesan cheese if desired.

Variations & Tips
For a touch of spice, add a pinch of red pepper flakes before serving. You can also mix in some sautéed mushrooms or spinach for added texture and nutrition. If you prefer, swap out the fettuccine for whole wheat pasta or gluten-free noodles. And remember, a sprinkle of freshly cracked black pepper never goes amiss!