Cook pasta according to package instructions in well salted water. When pasta is done, drain and immediately toss in 2 tablespoons of sesame oil and set aside until ready to use.
While pasta is cooking, chop vegetables and prepare peanut sauce. For sauce, whisk together all ingredients for peanut sauce in a medium sized bowl, set aside until ready to use.
When ready to serve, add pasta to a large bowl, followed by chopped vegetables and peanut sauce. Toss everything together until well combined. Serve garnished with chopped fresh basil and sesame seeds if desired.
Notes
If making ahead of time, store peanut sauce separately until close to serving time. Add peanut sauce to noodles and vegetables and toss until well combined.
For leftovers, store in an airtight container in the fridge for 3-4 days.