Flatten chicken breast for an even cook.
Season chicken with onion butter, garlic powder, black pepper, and smoked paprika.
Cook chicken in a pan on medium to high heat for about 7 minutes each side, or until internal temperature reaches 165°F.
Make the sauce: combine cottage cheese, chicken broth, grated parmesan, melted butter, minced garlic, salt, and pepper.
Cook rotini pasta.
Cut up the cooked chicken.
Return the chicken to the pan to coat it in the marinade.
Add the cooked pasta to the pan with the chicken.
Add fat free mozzarella and spinach to the pan.
Mix everything together and use the heat from the pasta to wilt the spinach.
Add the cheese sauce to the pan and mix.
Portion the pasta into meal prep containers.
