Cook the Pasta: Begin by cooking your pasta in a large pot of boiling water. Once cooked, drain and set aside.
Prep Garlic and Onion: Mince the garlic and slice the green onions, keeping the white parts separate from the green.
Cook the Garlic and Onion: In a skillet over medium-high heat, sauté the garlic in a splash of water. Add more water as needed to prevent sticking. Cook until fragrant, then add the white parts of the onions and continue to sauté for 3 minutes.
Combine: Add the coconut milk and tamari or soy sauce to the skillet, heat for a minute, then incorporate the green onion parts. Add the cooked pasta and toss everything together.
Serve: Dish up while hot. Optionally, garnish with vegan Parmesan, chili flakes, and extra sliced green onions.