Fat free dumplings?

I don't know how Asian dough or Polish dough suggested in the comments will work but I might give it a try. I have found the following online.

Low-Fat Dumplings

Ingredients

• 150g / 5½ oz self-raising flour
• pinch salt and freshly ground black pepper
• 2 tbsp chopped fresh parsley or thyme (depending on preference)
• 1 egg yolk, lightly beaten
• 1 tsp olive oil

Method

1. Put the flour in a mixing bowl with the salt and pepper. Mix in the herbs. Add the egg and oil and mix, adding just enough cold water to bring it together as a dough (about 4 tbsp). Be careful not to add too much water as this will make the dumplings heavy. Knead the mixture a little.

2. Shape into eight golf-ball-sized pieces and put on top of the stew, pushing down a little to coat in the juices. Cover with the lid and return to the oven for 15 minutes, then remove the lid and cook for a further 15 minutes.

3. When the dumplings are golden-brown, lift them out of the stew into serving bowls and stir the stew. Serve immediately.

Fat-free Dumplings

Ingredients

• 2 cups / 473ml all-purpose flour
• 2½ tsp baking powder
• ¾ tsp salt
• 1⅓ cup / 414ml skimmed milk (less than 0.3% fat)

Method

1. Combine flour, baking powder and salt.
2. Pour in milk. Mix with a fork until all ingredients are moistened.
3. Drop dumplings by tablespoonfuls into the stew. It should be about 12 generously sized dumplings.
4. Cover with the lid and return to the oven for 15 minutes, then remove the lid and cook for a further 15 minutes.

Chris, I was surfing for recipes this morning and ran across a link on a Polish site for what Google Tranlate calls Silesian Dumplings. But for the fat in the egg yolk, there is no other fat
https://crummblle.wordpress.com/2011/10/20/kluski-slaskie-z-miesem-i-sosem/

These may fill your requirements
potatoes cooked and whipped, cooled down potato flour 1 egg

We add flour as much as 1/4 of potatoes *. We simply separate 1/4 of the potatoes and pour flour into the place. We add an egg and knead the dough. We form small balls the size of a walnut and ask a little girl to press her little finger in each dumpling. If we do not have a girl, we use for this purpose our little finger or the other end of a wooden spoon. Cook the dumplings for 5 minutes in salted water, drain them. If we add wheat instead of potato flour, we will have ordinary potato dumplings. * I add a little more flour - probably the potatoes in France are less flour.

Spätzle are defined as Bavarian Dumplings. It is also popular in other parts of Southern Germany and Alsace. You can use any kind of cow's milk (I have zero experience with vegatable 'milks'). There is also some fat in egg yolks

Just adapt the recipe technique to your stew gravy

Spätzle

Ingredients • 1 cup all-purpose flour • 1 pinch freshly ground black pepper • 1/2 teaspoon salt • 1/2 teaspoon ground nutmeg • 2 eggs • 1/4 cup milk • Hot water to cook • 2 tablespoons butter • 2 tablespoons chopped fresh parsley (optional)

Directions 1. Mix together flour, salt, pepper and nutmeg 2. Beat eggs well and add alternately with the milk to the dry ingredients 3. Mix until smooth 4. Let stand 15 to 60 minutes to autolyse 5. Press dough through Spätzle maker or use a cake spatula to cut of ribbons of dough on a cutting board. (This vid shows the technique https://www.youtube.com/watch?v=-Y6Ga9hMm4Y ) 6. Drop a few at a time into simmering liquid. Cook 5 to 8 minutes. Drain well. 7. Sauté boiled Spätzle in butter 8. Sprinkle chopped fresh parsley on top and serve