Combine chicken with the 6 ingredients and toss to coat chicken evenly.
Heat a large, nonstick skillet over medium high heat. Add chicken. Cook chicken for 10 minutes until no longer pink. Remove chicken to a warm platter.
Return pan to heat. Add 1/2 cup extra-virgin olive oil. Add garlic, and pepper flakes to oil.
Toss spaghetti in the pan with parsley, then season with a little coarse salt, to your taste. Toss for 3 minutes.
Add chicken on top of spaghetti and place in serving dish.
Cook's Notes: Prepare the chicken while the pasta is cooking. Also, prep your garlic, crushed red peppers and parsley for aglio olio. Place these ingredients all within reach of your stove. The aroma will be intense!