Begin by bringing a large pot of water to a boil. Once boiling, add the pad Thai noodles and cook according to the package instructions, usually about 5-7 minutes. Once cooked, drain the noodles in a colander and rinse them under cold water to stop the cooking process. Set aside.
While the noodles are cooking, peel and cut the beet and sweet potato into thin matchsticks. Slice the red or orange bell pepper, carrots, and radishes thinly. Cut the mango into matchsticks as well. This is where the magic of color comes alive!
In a mixing bowl, whisk together the olive oil, toasted sesame oil, rice vinegar, grated ginger, sambal oelek or sriracha, low sodium soy sauce, fish sauce (if using), and lime juice. This dressing will not only bring your noodles to life but also add a delightful depth of flavor.
In a large serving bowl, combine the cooked noodles, all your beautiful veggies, fresh basil, and watercress or spinach. Pour the dressing over the top and toss everything together gently until well combined.
To finish off your Rainbow Veggie Noodles, sprinkle the roasted peanuts and chopped cilantro on top for added crunch and flavor. Serve immediately, or let it sit for a few minutes to allow the flavors to meld together.