Start by bringing a large pot of salted water to a boil. Add the gluten-free pasta noodles and cook according to the package instructions until al dente. Once cooked, drain and set aside.
In a large skillet, heat the avocado oil over medium heat. Once hot, add the raw shrimp. Cook for about 2-3 minutes on each side or until they turn pink and opaque. Remove the shrimp from the skillet and set aside.
In the same skillet, add the minced garlic and sauté for about 30 seconds until fragrant. Be careful not to burn the garlic.
Add the coconut milk, lemon zest, lemon juice, red pepper flakes, sea salt, and black pepper to the skillet. Stir to combine and bring it to a gentle simmer.
In a small bowl, mix the tapioca flour with a tablespoon of water to create a slurry. Gradually add this to the simmering sauce, stirring continuously until the sauce thickens.
Add the cooked shrimp back into the skillet along with the drained pasta. Toss everything together until the pasta is well coated with the sauce.
Remove from heat and stir in the chopped parsley for a burst of color and flavor.