Absolutely! You can add more chicken and/or veggies to make this a larger meal. To make a larger portion you will need a larger jar (21 oz. or 32 oz. would work). If you keep the amount of water used consistent with the original recipe (~8-10 ounces) then you will not need to increase the "soup base" but if you double to water used, I recommend also doubling the "soup base" also.