Crock Pot Chicken Parmesan is a simple gluten free dinner that's perfect for a weeknight. Just set the chicken and marinara sauce in the slow cooker and forget about it, then add cheese and pasta just before serving. It's minimal effort, with a ton of flavor!
Place chicken breast, marinara sauce, garlic, salt, and pepper into slow cooker. Cover and cook on HIGH 4 hours, or on LOW 8 hours.
Once chicken is done, remove and cut into 1-inch pieces. Add back to slow cooker.
Cook gluten free penne until al dente. Once done, drain and add to slow cooker.
Add 1 cup mozzarella and 1 cup parmesan over pasta, then stir everything together. Top with remaining 1 cup mozzarella and place the lid back onto the slow cooker (use the WARM setting if you have it).
Once cheese on top is melted, serve.
It's important to only cook the pasta until al dente, or it will get mushy and fall apart.