This title is a bit misleading -- when most people think of chowder, they think of creamy, fat-laden and sometimes goopy stuff, not suitable for everyday eating but maybe, just maybe, an occasional indulgence.
But not this one. With less than 300 calories per serving, and zero cream, this is an everyday staple, perfect for the last day of a camping trip when you have various small bits of this and that leftover. While the recipe calls for specific vegetables, feel free to substitute whatever you have on hand. I hate carrots and green beans, so they're absent from this soup -- but if you've got 'em, use 'em.
This soup can also be easily altered for vegetarian diners by replacing the turkey with tofu and the turkey stock with vegetable stock. Almond milk or soy milk may be used instead of the regular milk, and the butter may be tossed in favor of vegetable oil. The parmesan may also be omitted -- just add a bit more flour to compensate, or your dumplings will be especially sticky.
If you don't hike or camp with fresh herbs, substitute 1 T dried herbs for the 1/4 cup fresh ones in the dumplings.