Bring a large pot of water to a boil and cook the rice noodles for 3–4 minutes until al dente.
Drain and rinse the noodles with cold water to stop the cooking process.
Toss the rinsed noodles with sesame oil to prevent sticking and set aside.
Blend peanut butter, lemon juice, sweetener, soy sauce, sesame oil, garlic, and salt in a food processor or blender until smooth.
If the sauce is too thick, add water a teaspoon at a time and mix until it reaches your desired consistency.
Slice or dice the vegetables of your choice, such as kale, carrots, broccoli, cabbage, and bell pepper.
Assemble bowls by layering noodles at the bottom, followed by the vegetables, crushed peanuts, and sesame seeds.
Drizzle the prepared peanut sauce over the top and serve.