Heat oil in a large nonstick skillet coated with cooking spray over medium-high heat. Add sliced mushrooms; sauté 3 minutes or until tender. Remove mushrooms from pan.
Rub steak seasoning and thyme over pork. Add pork to pan; cook 3 minutes on each side or until done. Combine broth and cornstarch, stirring with a whisk. Add mushrooms and broth mixture to pan. Bring to a boil; cook 1 minute or until slightly thickened.