Combine the sauces

• Pour the marinara sauce and the Alfredo sauce into the slow cooker.
• Add a splash of water to the jars, shake them and pour the rest into the slow cooker.

Add the chicken and seasonings

• Place the chicken breasts in the sauce.
• Season with garlic powder, onion powder, Italian seasoning and salt.

Slow cook

• Cover and cook on high for 4 hours or on low for 6 hours.

Shred the chicken

• Take the chicken out and shred it on a plate with two forks, or use a hand mixer directly in the slow cooker.
• Return the shredded chicken to the slow cooker and stir well.

Cook the pasta

• Boil a pot of water and cook the penne until al dente.
• Drain the pasta.

Combine and melt the cheese

• Add the drained pasta to the slow cooker and stir.
• Sprinkle the shredded mozzarella on top.
• Cover and cook on high until the cheese melts.