Place the brown rice noodles in a large bowl and cover with very hot water, soaking for 5-8 minutes until tender but firm, then drain and set aside.
In a small jar, whisk together the tamari, coconut aminos, fish sauce, honey, lime juice, and red pepper flakes to create the pad thai sauce.
Heat the avocado oil in a large skillet or wok over medium-high heat, then add the minced garlic and shrimp, sautéing until the shrimp are pink and opaque.
Push the shrimp to one side of the pan, crack the egg into the empty space, and scramble it quickly until just set.
Add the drained noodles, bean sprouts, and the prepared sauce to the pan, tossing everything together for 2 minutes until the noodles are well-coated and the sprouts slightly wilt.
Remove from heat and garnish with sliced green onions and crushed peanuts before serving.