Barley Bean SOup with Mushrooms

One of my favorite ways to make the Barley Bean Soup is using mushrooms as a substitute for the meat recommended. 
*Mushrooms: 8-16 oz of Baby Bell mushrooms either pre-sliced or quarter them up myself. 
*Broth: Take half of the recommended water and add mushroom broth, my favorite: https://www.betterthanbouillon.com/products/mushroom-base/
*Tomatoes: 24-32oz of either plan diced tomatoes or fire roasted tomatoes
For Instructions on how to do it in your Instant Pot check out:
https://www.northernseasons.com/store/p1/Ol%27_Geezer_Barley_Bean_Soup.html#/