Heat sesame oil in a large pan or wok over medium-high heat.
Add julienned carrot, broccoli florets, and sliced mushrooms. Stir-fry for 5-6 minutes until the vegetables are tender but still crisp.
Cook the rice noodles according to package instructions until al dente. Drain and rinse them under cold water to stop the cooking process. Set aside.
In a small bowl, whisk together liquid aminos sauce, corn starch, maple syrup, ginger, and garlic. Heat in a medium sauce pan on medium heat stirring constantly until it thickens a little.
Add the cooked rice noodles to the pan with the vegetables.
Pour the prepared sauce over the noodles and vegetables. Toss everything together until well combined and heated through.
Adjust the seasoning if needed.
Place the Thai-inspired vegetable rice noodles on serving plates, and garnish with the fresh sliced green onions, cashew nuts and lemon wedges.