Heat a large frying pan to medium high heat and cut 2-3 chicken breasts in half lengthwise. This is called a butterfly cut.
Season with salt and pepper and pan sear with a little olive oil for 3-4 minutes each side until the internal temperature reaches 165°F.
Set the chicken aside to cool.
Start boiling a pot of salted water and add in a 16 oz box of pappardelle pasta. It will need to cook for 10 minutes. Meanwhile, chop 1/2 an onion, 4 garlic cloves, and shred 3/4 cup cheese.
Cook the onion on medium high for 2 minutes, then add in the garlic and 1/2 cup drained sundried tomatoes. Cook for an additional minute.
Reduce heat to low and add 2 cups spinach and cook until softened.
Add 1/2 cup cream cheese, mix, and then add the pesto and broth. Stir until incorporated.
Add 1 tsp Italian seasoning, salt to preference, and 1/4 cup parmesan cheese. Stir until all the cheese is melted. If it looks too thick at this point add more broth. I also prefer to scoop any oil that may rise to the top that came out of the sundried tomatoes but that’s optional.
Drain the pasta and add to the sauce. Stir well until fully coated.
Plate by adding the pasta, topping with fresh garnish (optional) and the remaining parmesan cheese. Serve alongside the chicken breast. Enjoy!