DELICIOUS STEAK SANDWICH ONION AND MUSHROOM GRAVYThis post may include affiliate links. Please see my disclosure. Prev1 of 2NextUse your ← → (arrow) keys to browse What manly food do we like to eat while watching football games? This Steak Sandwich with Caramelized Onions and Mushroom Gravy is perfect. Prev1 of 2NextUse your ← → (arrow) keys to browse Visit My Travel Blog, Our American Travels, for Family Fun Travel Ideas All Over America.