Yes, you can freeze most soups and chilies, including this recipe for green chicken chili. My suggestion is no longer than 3-4 months. If this soup feels too big for your crowd, it is easy to divide the recipe in half. If you make a whole batch of my Instant Pot Bone Broth and only use half, it freezes well! Bone broth is usually good for up to 6 months or even up to a year in a deep freeze if you don't end up sipping it sooner!