Soak brown rice noodles in a bowl of very hot water for 20 minutes until tender but firm, then drain and set aside.
In a small jar, whisk together the tamari, fish sauce, honey, and lime juice until the honey is fully dissolved.
Heat the toasted sesame oil in a large wok or skillet over medium-high heat until shimmering.
Add the minced garlic and red pepper flakes to the oil, sautéing for 30 seconds until the aroma is released.
Add the shrimp to the wok and cook for 2-3 minutes until they turn pink and are just cooked through.
Push the shrimp to one side of the pan and crack the egg into the empty space, scrambling it quickly until set.
Add the soaked noodles, prepared sauce, and scallions to the wok, tossing everything together for 2 minutes to coat.
Stir in the fresh bean sprouts and cook for 30 seconds more to slightly soften them while maintaining their snap.
Remove from heat and serve immediately, garnished with the crushed peanuts for a salty, crunchy finish.