Boil a pot of water and add udon noodles to the water, once the water has come to the boil. Once cooked rinse with cold water and keep to the side.
On a chopping board cut the carrots and capsicum into sticks. Cut the cauliflower and broccoli into small florets.
In a wok or a large fry pan add olive oil and diced onion with the grated ginger. Once the onion has started to caramelise (brown) add all your vegetables. I usually start with my hard vegetables first and slowly add the softer ones to follow.
After a few minutes add the sesame oil, salt & pepper and soy sauce and give it a good mix.
Add the udon noodles into the wok/ pan and ensure everything is nicely mixed together, fusing the flavours.
Serve in a bowl and sprinkle some additional sesame seeds on top.