Soak the brown rice noodles in a bowl of hot water for 8-10 minutes until tender, then drain and set aside.
In a small jar, whisk together the tamari, lime juice, and coconut sugar until the sugar is fully dissolved to create the sauce.
Heat the toasted sesame oil in a large skillet or wok over medium-high heat.
Add the minced garlic and red pepper flakes to the skillet, sautéing for 30 seconds until fragrant.
Add the shrimp to the skillet and cook for 2-3 minutes per side until they are pink and opaque.
Push the shrimp to one side of the pan, crack the egg into the empty space, and scramble until just set.
Add the soaked noodles, bean sprouts, and prepared sauce to the pan, tossing everything together for 2 minutes.
Remove from heat and garnish with sliced scallions, crushed peanuts, and fresh cilantro before serving.