Wash and clean the chayote. Either spiralize OR and grate both chayote. I used this tool to spiralize. Slice the onions, chop or mince the garlic fine and slit the chili in half
In a medium pan, heat oil over medium heat and splutter the mustard and cumin seeds.
Add the curry leaf (if using basil will add in later), onions, garlic and pepper and saute until onions are soft and translucent, about 4-5 minutes.
Add the grated/spiralized chayote, ground tumeric and salt to taste. Stir well, then cover and cook for a few minutes. Do not cook the chayote till soft, there should be minimal cooking to leave the crunchy texture. Stir in basil if using instead of curry leaves.
Garnish with grated/shredded coconut and a squeeze of fresh lemon juice. Season with salt to taste and more lemon as desired.
Serve warm and enjoy