Easy Vegetarian Minestrone Soup (One Pot, 45 Minutes)

Ingredients

• 2 tablespoons olive oil
• 1 medium yellow onion, diced
• 2 medium carrots, diced
• 2 celery ribs, diced
• 4 cloves garlic, minced
• 2 tablespoons tomato paste
• 1 1/2 teaspoons Italian seasoning
• 1/4 teaspoon crushed red pepper flakes, optional
• 1 can (28 oz / 795 g) diced tomatoes with juices
• 5 cups (1.2 L) vegetable broth
• 1 can (15 oz / 425 g) cannellini beans, rinsed and drained
• 1 can (15 oz / 425 g) kidney beans, rinsed and drained
• 1 bay leaf
• 3/4 teaspoon fine salt, plus more to taste
• 1/2 teaspoon black pepper
• 3/4 cup (90 g) ditalini or other small pasta
• 1 medium zucchini, diced
• 1 cup (120 g) green beans, trimmed and cut into 1-inch pieces
• 1 tablespoon fresh lemon juice
• 1/4 cup chopped fresh parsley or basil