Salisbury Steak w/ Mushroom Gravy & Caramelized Onions

This is not a quick meal but well worth the effort! Get the onions going first since they will take the longest to cook. Then start the gravy which can be thickening on its own while you make the steak patties. By the way, the picture shown is not from my recipe. I made this last weekend and forgot to take a picture….guess I will have to make it again!