Boil water in a big pot, toss in some salt, and add the millet noodles. Let them cook for about 10 minutes until they're just right. Drain and rinse them with cold water. Keep them aside for now.
Get your pan and pour in some oil. Heat it up on medium-high, then toss in those cumin seeds. When they start popping, add the ginger, garlic, and onion. Cook them up for about 5 minutes until the onion gets all soft and golden.
Next up, chuck in the carrot, cabbage, and capsicum. Stir them around for roughly 10 minutes. You want them to get all cozy—tender but with a nice crunch.
Now for the fun part! Pour in the soy sauce, vinegar, sugar, and black pepper. Mix it up and taste it. If it needs a little more jazz, add whatever makes your taste buds happy.
Add those cooked millet noodles and toss everything together. Let it all hang out for another 5 minutes until it's heated through.
Sprinkle some fresh coriander leaves on top and serve it up hot or let it cool down—whichever way you fancy!