Prepare brown rice noodles according to package instructions until al dente, then drain and set aside.
In a small bowl, whisk together tamari, lime juice, maple syrup, fish sauce, and red pepper flakes to create the sauce.
Heat avocado oil in a large skillet or wok over medium-high heat and sauté minced garlic for 30 seconds until fragrant.
Add shrimp to the skillet and cook 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 skillet, scramble until fully set, then incorporate with the shrimp.
Add the cooked noodles, bean sprouts, and prepared sauce to the skillet, tossing for 2 minutes until everything is evenly coated and hot.
Serve immediately, garnished with sliced green onions and crushed peanuts for a fresh finish.