Submerge the brown rice noodles in a bowl of very hot water for 8-10 minutes until softened but still firm, then drain.
In a small jar, whisk together the tamari, fish sauce, honey, and lime juice until the honey is fully dissolved.
Heat the avocado oil in a large non-stick skillet or wok over medium-high heat and add the minced garlic.
Add the shrimp to the skillet and sear for 2 minutes per side until pink and opaque, then remove shrimp and set aside.
Push any remaining bits to the side of the pan, crack the egg into the center, and scramble quickly until just set.
Add the drained noodles, cooked shrimp, and the prepared sauce to the skillet, tossing vigorously for 1-2 minutes to coat.
Fold in the bean sprouts and green onions, cooking for 30 seconds until the sprouts are slightly wilted but still crunchy.
Plate the noodles and garnish with red pepper flakes and crushed peanuts for a satisfying crunch.