1. Preheat oven to 350 degrees F. Put the onion, tomatoes and barley in a large baking dish. Add enough water to come up to the level of the vegetables and barley.
2. Stir in the herbs and some salt, and put the dish into the oven for 1 hour.
3. After an hour, stir in the broccoli and balsamic vinegar and put the dish back in the oven for about 20 minutes, or until the barley is very soft and large.
Enjoy with some Chianti for a truly Tuscan evening.
Source of recipe: To watch a free video of me making this vegetarian barley casserole recipe, so I can show you the exact techniques that will make the perfect recipe, go to http://www.healthyveganrecipes.net/video/barley-casserole-recipe [1].