Soak the brown rice noodles in a bowl of hot water for 8-10 minutes until softened but still firm to the touch, then drain and set aside.
Whisk together the tamari, lime juice, honey, and red pepper flakes in a small bowl to create the signature Pad Thai sauce.
Heat the avocado oil in a large skillet or wok over medium-high heat and sauté the minced garlic for 30 seconds until fragrant.
Add the shrimp to the pan and cook for 2-3 minutes until they turn pink and opaque, then push them to one side of the skillet.
Crack the egg into the empty side of the pan, scramble it quickly until just set, and then mix it into the shrimp.
Add the drained noodles and the prepared sauce to the skillet, tossing everything together for 1-2 minutes until the noodles are well-coated and heated through.
Fold in the bean sprouts and sliced green onions, cooking for just 30 seconds to maintain their crisp texture.
Garnish the dish with crushed peanuts and a pinch of sea salt before serving immediately with an extra lime wedge if desired.