Spinach and Mushroom Tortellini Soup

Ingredients (14)

• 1 Tablespoon butter
• 1/2 a large onion, chopped
• 1 red pepper, chopped
• 2 teaspoons minced garlic
• 12 ounces mushrooms (any variety)
• 8 cups low sodium chicken broth
• 1 cup water
• 8 oz. frozen spinach
• About a 4 inch piece Parmesan rind (optional)
• 1 1/2 teaspoon Kosher Salt
• 1 teaspoon coriander
• 1/2 teaspoon crushed red pepper flakes
• Cracked Pepper
• 9 ounces cheese tortellini