Heat the olive oil in a large skillet over medium heat. Season the chopped chicken with sea salt, freshly cracked pepper, and garlic powder, to taste. Add the chicken to the skillet and cook, stirring occasionally, for 5-6 minutes.
Prepare the pasta in salted water per instructions. Angel hair usually takes 3-5 minutes to cook. Drain once it has finished cooking.
Remove the cooked chicken from the skillet and place into a bowl. Add a drizzle more of olive oil to the skillet then add the artichoke hearts, grape tomatoes, capers, and a dash of crushed red pepper flakes. Cook , stirring occasionally for 2 minutes. Add the minced garlic, and cook, stirring constantly for 1 minute. Add the chicken broth and lemon juice to the skillet then season with sea salt and freshly cracked pepper, to taste. Cook for 2 minutes then add the cooked and drained angel hair pasta to the pan along with most of the parsley. Toss until evenly coated with the sauce. Pour into a serving bowl then top with feta cheese and the remaining chopped parsley. Serve immediately. Enjoy.