In a large skillet add olive oil & cook the chicken on medium high heat for 3-5 minutes on each side or until brown on each side & cooked until no longer pink in the center.

Remove chicken & set aside on a plate.

Add the sliced mushrooms to the skillet & cook for a few minutes until tender. Remove & set aside.

To make the sauce add the butter & melt.

Add garlic & cook until tender.

Whisk in the flour until it thickens.

Whisk in chicken broth, heavy cream, Parmesan cheese, garlic powder, pepper, & salt.

Add the spinach & let simmer until it starts to thicken & the spinach wilts.

Add the chicken & mushrooms back into the sauce & serve over pasta if desired.