<ul>
<li>1 tablespoon olive oil</li>
<li>1 onion, chopped</li>
<li>2 garlic cloves, minced</li>
<li>2 carrots, sliced</li>
<li>2 celery stalks, chopped</li>
<li>1 zucchini, chopped</li>
<li>1 potato, diced</li>
<li>1 cup green beans, chopped</li>
<li>1 can (14.5 oz) diced tomatoes</li>
<li>4 cups vegetable broth</li>
<li>1 cup spinach or kale, chopped</li>
<li>1 teaspoon dried thyme</li>
<li>1 teaspoon dried basil</li>
<li>Salt and pepper to taste</li>
<li>1 tablespoon lemon juice (optional)</li>
<li>Fresh parsley for garnish</li>
</ul>