Ingredients
Soup base
1 tablespoon olive oil
1 medium yellow onion, diced
4 cloves garlic, minced (approximately 1⅓ tablespoons)
4 tablespoons tomato paste
6 cups low-sodium chicken broth
1 (28-ounce) can diced tomatoes, undrained
Seasonings
2 teaspoons Italian seasoning
1 teaspoon garlic powder
1 teaspoon onion powder
½ teaspoon freshly ground black pepper
½ teaspoon kosher salt, plus more to taste
¼ teaspoon crushed red pepper flakes (optional)
Meatballs, pasta, and vegetables
1 (24-ounce) package frozen, fully cooked Italian meatballs
1 (18- to 20-ounce) package frozen cheese tortellini
5 ounces fresh baby spinach
½ cup freshly grated Parmesan cheese, plus extra for serving
Instructions
Step 1. Prepare the soup base
For deeper flavor, heat the olive oil in a skillet over medium heat. Sauté the onion for 4–5 minutes until softened. Add the garlic and tomato paste and cook for another minute.
Transfer to the crockpot.
For a quicker preparation, skip the sautéing and add the onion, garlic, olive oil, and tomato paste directly to the crockpot.
Step 2. Combine the ingredients
Add the chicken broth, diced tomatoes with their juices, Italian seasoning, garlic powder, onion powder, black pepper, salt, and red pepper flakes.
Stir thoroughly to distribute the tomato paste.
Add the frozen meatballs and gently stir.
Step 3. Slow cook
Cover and cook on:
LOW for 4–5 hours
HIGH for 2–3 hours
The meatballs should be thoroughly heated, reaching an internal temperature of 165°F.
Step 4. Add the tortellini
Approximately 30 minutes before serving, turn the crockpot to HIGH.
Stir in the frozen cheese tortellini, making sure the pasta is submerged in the broth.
Cover and cook for 20–30 minutes, until the tortellini is tender. Check after 15 minutes to prevent overcooking.
Step 5. Add the spinach and Parmesan
When the tortellini is almost tender, stir in the baby spinach.
Cover and cook for another 5 minutes, or until wilted.
Turn off the crockpot. Gradually stir in the grated Parmesan until incorporated.
Taste and adjust salt, pepper, or broth as desired.
Step 6. Serve
Ladle into bowls and sprinkle with additional Parmesan.