I made this tonight in the crockpot. I’ve already considered some changes:

I used the following:

10oz can condensed beef broth
1 tsp beef bouillon powder
2 Tbsp tomato paste
8oz sliced mushrooms
1/2 medium onion, chopped
1/2 cup pearl barley
2 carrots, chopped (used ~ 3oz)
2 celery stalks, chopped (used ~ 3oz)
1/2 tsp thyme
1/4 tsp rosemary
1/4 tsp salt
1/4 tsp black pepper

The changes I would have made would be to perhaps swap out some of the beef broth with a splash of wine, add a little garlic, and perhaps a bay leaf. And definitely cut back a bit on the barley (as the portion size was quite big).

Total calories in the above:
592 (33g protein, 3g fat, 117g carbs)

To that I added 13.6oz of top round steak (cubed). It’s not the ideal cut for the crockpot, but it still worked very well. So, the above, divided into two VERY generous servings was:

562 cals (59g protein, 11g fat, 58g carbs)

The original recipe had 2Tb butter, but I wasn’t sure that I needed it, so I left it out. I would seriously think that this could be easily used to serve three (@375 per).

(oops - this cooked easily for just under 6 hours on low)