Chop any vegetables that need to be diced into smaller pieces and rinse any canned beans. Set aside.
In a large pot, add tomatoes, vegetable broth, water, barley and vegetables (except the soft greens and canned beans!). Bring everything to a boil over medium-high heat with the lid on.
Let the mixture boil for about 5-10 minutes, then reduce to a simmer over medium-low heat. Then, add your softer vegetables and/or canned beans.
Continue to cook over medium-low heat until all vegetables and barley are tender, about an hour.