In a pan (or pot) over medium heat, add the olive oil. Once heated through, add the onion. After a few minutes, add in the rosemary sprigs.
Once onion is tender (about 5 minutes), add in the cubed butternut squash. Let the squash cook until slightly caramelized (about 10-15 minutes).
Add in the water. Start with 2.5 cups water and adjust while cooking as needed.
Once water is boiling, add in the barley.
Stir, and let the barley cook until tender, about 25-35 minutes. Remove the rosemary sprigs.
Ladle into a bowl, and top with more olive oil if desired. Enjoy!
Notes
Be sure to let the squash slightly caramelize. This adds tons of flavor to the dish!
The barley take quite some time to cook - if you'd like it to take less time to cook, soak it in cold water for a few hours before using
You may need to adjust the amount of water while cooking. You can start with 2.5 cups, and add more from there if needed. I ended up using 3.5 cups of water total in this dish