Remove thyme leaves from stem. Grate cheese (1/3 cup).
Season chicken with 1/2 teaspoon salt and 1/4 teaspoon pepper; coat chicken with flour on both sides, shaking off any excess (wash hands).
Preheat large saute on medium-high 2-3 minutes. Place oil and butter in pan, cook chicken 2-3 minutes on each side or until browned and 165degreesF. Remove chicken from pan.
Place mushrooms, garlic, thyme, remaining 1/2 teaspoon salt, and 1/4 teaspoon pepper in pan; cook and stir 2 minutes. Cut pasta in half.
Stir in stock, half-and-half, and pasta; cook and stir 3-4 minutes or until pasta is tender. Stir in cheese and spinach; cook 1 minute or until cheese melts.
Serve chicken over pasta.
Sponsor recipe courtesy of Publix Aprons Simple Meals