Hearty Italian Slow-Cooked Pasta Fagioli

Ingredients

• 2 tablespoons olive oil
• 1 large onion, diced
• 2 cloves garlic, minced
• 2 carrots, diced
• 2 celery stalks, diced
• 1 teaspoon dried oregano
• 1 teaspoon dried basil
• 1/4 teaspoon crushed red pepper flakes
• 1 cup cannellini beans, drained and rinsed
• 1 cup kidney beans, drained and rinsed
• 1 can (14.5 oz) diced tomatoes with juice
• 4 cups vegetable broth
• 1 cup ditalini pasta or any small pasta shape
• Salt
• pepper
• 2 cups fresh spinach leaves
• 1/2 cup grated Parmesan cheese, for serving
• Fresh basil leaves, for garnish