Make the Sauce: In a medium bowl, whisk together the coconut sugar, fish sauce, water, tamarind paste (or lime juice), tamari, and cayenne pepper until the sugar dissolves and the mixture is smooth. Set the sauce aside for later use.
Cook the Shrimp: Heat 1 tablespoon of the oil in a large skillet or wok over medium-high heat. Spread the shrimp out in a single layer and cook for 1 minute without moving them. Flip each shrimp and cook for an additional 30 seconds or until the shrimp are pink and just cooked through. Remove the shrimp from the skillet and set them aside on a plate.
Cook the Aromatics and Noodles: Add the remaining tablespoon of oil to the skillet. Once hot, sauté the grated ginger, minced garlic, and the white parts of the green onions for about 30 seconds until fragrant. Add the spiralized parsnip noodles to the skillet and toss them gently with the aromatics. Drizzle the prepared sauce over the noodles, stirring to coat everything evenly. Continue cooking for 2-3 minutes until the noodles soften slightly and the sauce reduces.
Add the Eggs: Push the parsnip noodles to one side of the skillet to create space. Pour the beaten eggs into the empty side and scramble them, stirring occasionally, until soft curds form. Mix the scrambled eggs into the noodles, combining everything evenly.
Finish and Serve: Return the cooked shrimp to the skillet, along with the mung bean sprouts. Stir everything together and cook for 30 seconds to heat through. Remove the skillet from the heat, then sprinkle the dish with the green tops of the green onions, cashews, and cilantro as garnish. Serve immediately.