Chicken, Spinach, and Tortellini Soup

Details

Ingredients

• 1 tablespoon butter
• 1 medium onion, chopped
• ½ teaspoon salt
• 3 cloves garlic, finely minced
• 3 cups frozen chopped spinach
• 5 cups chicken stock
• 2 ½ cups chopped cooked chicken
• 1 (15 ounce) can crushed tomatoes
• 1 cup water
• 2 bay leaves
• 1 teaspoon dried oregano
• 1 teaspoon dried parsley
• 1 teaspoon red pepper flakes, or to taste
• salt and ground black pepper to taste
• 1 (12 ounce) package refrigerated cheese tortellini