A Heartwarming Italian Vegetable Soup

Ingredients

• 2 tablespoons extra-virgin olive oil
• 1 medium yellow onion, diced
• 2 medium carrots, chopped
• 2 celery ribs, thinly sliced
• 1 teaspoon sea salt, plus more to taste
• Freshly ground black pepper
• 3 garlic cloves, grated
• 1 (28-ounce) can diced tomatoes
• 1½ cups cooked white beans or kidney beans, drained and rinsed
• 1 cup chopped green beans
• 4 cups vegetable broth
• 2 bay leaves
• 1 teaspoon dried oregano
• 1 teaspoon dried thyme
• ¾ cup small pasta such as elbows, shells, or orecchiette
• ½ cup chopped fresh parsley
• Red pepper flakes
• Grated Parmesan cheese, optional, for serving