Onion & Mushroom Smothered Steaks

WHAT YOU'LL NEED

• 2 Tbsp. I Can't Believe It's Not Butter!® Spread
• 1 lb. boneless sirloin steak, cut into 4 pieces and lightly pounded
• 1 medium onion, thinly sliced
• 1 package (10 oz.) white button mushrooms
• 1 tub Knorr® Homestyle Stock - Beef
• 1 1/4 cups water
• 1/4 cup dry red wine
• 1/2 tsp. fresh thyme or 1/8 tsp. dried thyme leaves