If you have a wok, great! If not use a large pan. Place it over high heat with some olive oil and toss in the ginger matchsticks with the garlic and allow to become fragrant and soften slightly (mind the heat of the pan here!). Then add chopped chilli and onion and stir fry a minute or two.
Add the rest of the roughly chopped veggies and toss together with the soy sauce (you can add a splash of water here). Season with salt and pepper and stir fry for 3-5 minutes on high heat. Aim for crispy veggies!
Serve with your choice of rice or noodles. (Add sweet and sour sauce if your preference!)