In a mixing bowl, combine the all-purpose flour, warm water, salt, and sesame oil to make the dumpling dough. Knead until it forms a smooth and elastic ball. Cover the dough and let it rest for about 20 minutes.
In the meantime, prepare the vegetable filling for the dumplings. Finely chop your desired assortment of vegetables and set them aside.
After the dough has rested, roll it out into a thin sheet on a floured surface. Use a round cookie cutter or a glass to cut out circles from the dough.
Take one dumpling wrapper at a time and place a small spoonful of the vegetable filling in the center. Fold the wrapper in half and pinch the edges together to seal the dumpling. Repeat this process until all the dough and filling are used.
In a large pot, bring the vegetable broth to a simmer over medium heat. Add minced garlic, grated ginger, soy sauce, rice vinegar, sesame oil, salt, and pepper. Stir well to combine the flavors.
Gently drop the dumplings into the simmering soup. Cook for about 8-10 minutes or until the dumplings float to the surface and are cooked through.
Once the dumplings are cooked, remove the soup from heat. Serve the Dumpling Soup without Meat hot, garnished with sliced green onions and sesame seeds, if desired.Enjoy the warm and comforting flavors of this vegetarian Dumpling Soup without Meat. It's a hearty and satisfying dish that will surely delight your taste buds.