Italian Chicken Smothered with Spinach and Mushrooms

This was way good! You need to marinate the chicken. I just put it in before I went to work and pulled it out at the end of the day. It was delicious!

4-6 oz chicken breast (I just used 4 chicken breasts)
1 (12 oz) prepared Italian salad dressing
16 oz mushrooms sliced
3 green onions sliced
Olive Oil
2 Tbsp butter
salt and pepper
2 cloves garlic minced
1 tsp Worcestershire sauce
12 oz spinach
1 C shredded cheese (It calls for Asiago, I used Parmesan and an Italian blend)
Optional Red pepper flakes

Directions:
Put the chicken in a large plastic bag with the Italian dressing marinade overnight (or for 8 hours). Remove chicken and throw away marinade. Season the chicken with salt and pepper (or whatever seasonings you would like). Put olive oil in a large pan and add 2 Tbsp of butter. Sear the chicken on both sides and cook until juices run clear. Remove chicken from heat and keep warm.
In the same pan, saute the mushrooms for 2-3 minutes then add the sliced green onions and garlic. Add extra oil or butter if needed. Season with salt and pepper to taste. Add the Worcestershire sauce. Cook for 2-3 minutes until the onions are soft.
Add the spinach and cook until it wilts. Place chicken on a pan for the over and put the spinach, mushroom mix on top of the chicken pieces and cover with cheese. Broil for 2 minutes or until cheese melts.