Crockpot Greek Chicken

In a skillet cook 2 lb. of chicken ( in 1" cubes), cook in olive oil. Place in the crockpot with 2 jars of pasta sauce. Also add 1 C kalamata olives, 1 large container of fresh spinach, 2 red bell peppers, sliced. Turn on high and cook for 4 hours. Before serving cook 1 lb. of pasta. Serve the sauce over the top of the pasta and top with feta cheese.