Place brown rice noodles in a bowl of very hot water and soak for 8-10 minutes until tender but firm, then drain.
In a small jar, whisk together the tamari, fish sauce, maple syrup, lime juice, and red pepper flakes until well combined.
Heat the avocado oil in a large skillet or wok over medium-high heat and add the minced garlic, sautéing for 30 seconds until fragrant.
Add the shrimp to the skillet and cook for 2 minutes per side until they turn pink and opaque.
Push the shrimp to one side of the pan and crack the egg into the empty space, scrambling it quickly until just set.
Add the drained noodles and the prepared sauce to the pan, tossing everything together for 1-2 minutes until the noodles are well coated.
Fold in the fresh bean sprouts and cook for an additional 30 seconds to slightly soften them while maintaining their texture.
Remove from heat and garnish with sliced green onions and crushed roasted peanuts before serving hot.