Soak the brown rice noodles in a bowl of very hot water for 8 to 10 minutes until softened but still al dente, then drain.
In a small glass jar, whisk together the tamarind paste, coconut aminos, and fish sauce until the mixture is smooth.
Heat the avocado oil in a large wok or skillet over medium-high heat and sear the shrimp and cubed tofu until the shrimp is pink.
Push the proteins to the side of the pan, crack the egg into the center, and scramble it quickly until just cooked through.
Add the minced garlic, soaked noodles, and sauce to the pan, tossing vigorously for 2 minutes to ensure every strand is coated.
Fold in the bean sprouts and green onions, then serve immediately topped with crushed peanuts, red pepper flakes, and a fresh lime squeeze.