Soak the rice noodles in hot water for 10 minutes until tender but firm, then drain.
Whisk together the tamari, lime juice, fish sauce, maple syrup, and red pepper flakes in a small bowl to create the sauce.
Heat the avocado oil in a large skillet or wok over medium-high heat and sauté the minced garlic until fragrant.
Add the shrimp to the skillet and cook for 2-3 minutes until they are pink and opaque.
Push the shrimp to one side of the pan, crack the egg into the empty space, and scramble it until just set.
Add the drained noodles, sauce mixture, bean sprouts, and sliced green onions to the pan.
Stir-fry everything together for 2 minutes until the sauce is well-absorbed and the noodles are glossy.
Divide into bowls and garnish with crushed peanuts for a salty, satisfying crunch.