Soak the Noodles: Follow the directions on the rice noodle package or transfer the noodles to a heat-proof bowl and cover with hot water. Soak noodles for 10-15 minutes, until just tender. Drain noodles, then set aside for cooking. Note: you want the noodles to be softened, but still a little ‘al dente’ as they will finish cooking in the pan. Also, make sure your noodles are softened before you start stir-frying, as it goes quite quickly.
Make the Sauce: Combine all sauce ingredients in a small bowl. Whisk until sugar dissolves, then set aside.
Stir Fry the Veggies: Heat the oil in a wok large skillet over medium-high heat. When the pan is hot add the onion, green onion, pepper and cabbage. Cook for 4-5 minutes, stirring often until the veggies are tender-crisp.
Add the Garlic: Add the garlic and cook for 1 minute, stirring constantly, until fragrant.
Add Noodles & Sauce: Add the noodles, sauce, Thai basil and chilis, mix well to coak the noodles, cooking for 1-2 minutes, tossing noodles often until warmed through and the noodles have soaked up all the excess sauce.
Serve: Divide noodles between bowls and sprinkle with more Thai basil and thinly slices chilis, if desired. Serve with lime wedges on the side.