2 tablespoons olive oil
1 large onion, diced
2 cloves garlic, minced
3 carrots, peeled and sliced
2 celery stalks, sliced
2 potatoes, peeled and diced
1 zucchini, diced
1 cup green beans, chopped
1 can (14.5 oz) diced tomatoes
4 cups vegetable broth
1 teaspoon dried thyme