Ingredients 1 small onion, sliced 8 oz baby Bella mushrooms, sliced 1 tbsp extra virgin olive oil 1 lb sirloin steak, cut in strips, excess fat trimmedSalt & pepper 1 tbsp Worcestershire sauce ¼ cup dry red wine + splash for deglazing 2-½ cups fat free beef broth 2 tbsp corn starch + ¼ cup...