I made this recipe up myself. I had had some packaged beans and rice and while I liked it OK, rice is not always my friend. Further it seemed to me that the packaged product probably wasn't necessary and that the meal should be pretty easy to make for myself. I decided on barley instead of rice, my more or less favorite soup at that time was beef, vegetables and barley. My theory as I set out was, as always, start with good ingredients and try not to screw it up.
Lots of different beans would be good, the ones I like best are small red beans. They are roundish instead of oblong, a more aesthetically pleasing shape from my perspective. But black beans should be good, pinto should be good, the only place I wouldn't go is the white and or light colored beans like your white navy bean which would obviously lack contrast with the barley.
The bag directions for the beans are for cooking half a bag so that's where I started. This recipe has lots of places where it looks like it could easily be halved and this is one of them. My recipe makes WAY too much food so I really probably should start thinking a bit more about halving, but I confess, I haven't tried that yet. Here, for example, it would be easy to start with a half of a half a bag.
The bag directions on that barley call for a cup of barley. There's another place where halving the recipe would be easy.
What I do is start with 8 cups of water. I start the beans and set a timer for half an hour. When the timer goes off I add the barley and once again set the timer for half an hour. The two main ingredients now simmer together and my experience has been that they finish together.
Another half hours goes by and we are up to one hour for the beans. I set the timer for yet another 30 minutes. Today I diced up a pound of ham steaks, a red pepper and a green pepper. I want to saute the peppers and I throw the ham in with them to combine all the flavors. This looks like another place where the recipe could easily be cut in half.
Here's what that looked like today.
The third ding comes around, one hour for the barley, one and a half for the beans, and it is now time to prepare the corn. I set the timer for 15 more minutes and pop the corn into the microwave for four.