Place sauce ingredients into the Thermomix bowl. Combine 6 sec/speed 5. Set aside.
Heat a wok over medium-high heat, add a splash of EVOO.
Add the udon noodles and half of the sauce. Toss around until the noodles become loose and coated in sauce. Cook for 2 minutes without touching. They will start to caramelise. Toss and cook for a few more minutes until you're happy with the caramelisation.
Add vegetables (except garlic) and remaining sauce. Toss for 5 minutes until nearly cooked. Add fresh garlic and lots of black pepper, toss to combine.