Meatball Pasta Marinara Soup — How To Make Mini Meatball Soup

Ingredients

• 2 tbsp. extra-virgin olive oil
• 1 small yellow onion, chopped
• 2 large carrots, peeled and chopped
• 4 cloves garlic, chopped
• 1 tsp. Italian seasoning
• 1/2 tsp. crushed red pepper flakes
• Kosher salt
• Freshly ground black pepper
• 1 (24-oz.) jar marinara
• 4 c. low-sodium chicken broth
• 8 oz. sweet Italian sausage, casings removed, shaped into ½" balls
• 1 c. small pasta (such as anelletti)
• 3 c. packed baby spinach
• Freshly grated Parmesan, for serving