Soak the brown rice noodles in a bowl of very hot water for 8-10 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 avocado oil in a large wok or non-stick skillet over medium-high heat, then add the minced garlic and shrimp.
Sauté the shrimp for 2-3 minutes until pink and opaque, then push them to one side of the pan.
Crack the egg into the empty side of the pan, scramble it quickly until set, and then mix it into the shrimp.
Add the drained noodles and the prepared sauce to the pan, tossing vigorously for 1-2 minutes until the noodles absorb the liquid.
Fold in the bean sprouts, green onions, and red pepper flakes, cooking for just 30 seconds to maintain the crunch.
Plate the Pad Thai and garnish with crushed peanuts and an extra squeeze of lime if desired.