Bring pot of water to a boil. Heavily salt water. Add pasta once boiling.
In separate pan, add enough olive oil to coat bottom of pan
Add onions and garlic, cook until fragrant. Not browned.
Add ½ tbsp of salt, ½ tbsp of pepper and ½ tbsp of red pepper flakes and stir.
Add a splash of oat milk to mixture and stir quickly. Add ¼ cup of oat milk and bring flame up, reduce by half.
Remove pasta from water once al dente and add pasta to sauce, stir thoroughly. Reserve some pasta water on side. Bring temperature up to medium high.
Add 1/8 cup of pasta water to mixture and continue to stir.
Add juice of half of lemon. Use grater and add lemon zest to taste.
Grate vegan parm directly into pasta and stir. Add salt & pepper to taste.
Remove pasta from pan and plate, garnish with fresh basil, vegan parm and lemon zest.