1. Season chicken with salt and pepper, then place in the slow cooker.
2. Pour pesto and add butter and lemon juice over the chicken.
3. Cook on low heat for 4-6 hours until chicken is tender. 30 minutes before cooking time is up, cook pasta al dente according to package instructions, then drain.
4. Shred the cooked chicken with forks. Mix shredded chicken and parmesan in the slow cooker until cheese melts.
5. Add cooked pasta and toss until well coated.
6. Sprinkle shredded mozzarella cheese on top. Cook for 10-15 minutes more on low heat.
Serve hot and enjoy!
