Instructions

  1. Heat a heavy bottomed pot over medium heat; add oil, onions, carrots, bell pepper, thyme, and barley.
  2. Cook, stirring occasionally, until vegetables begin to brown, about 18 minutes.
  3. Stir in the vegetable broth and marinara sauce; cover and increase heat until mixture boils.
  4. Reduce heat to a gentle simmer and allow to cook until the barley is al dente, 6 to 8 minutes.
  5. Stir in the mushrooms and zucchini; season to taste with salt and pepper.
  6. Cover and continue to simmer until mushrooms and zucchini are just tender, 4 to 6 minutes.
  7. Remove from heat, add a little water to thin soup if it has become too thick; adjust seasonings and serve.