Prepare all the ingredients, clean them thoroughly, and let them drain.

Heat a pan, add cooking oil and garlic, and sauté until fragrant. Add the cuttlefish and stir-fry with the seasonings. Then add the tomatoes and onion and continue to stir-fry.

Taste and adjust the seasoning to your preference, then add the green onions and cilantro.

Transfer to a plate and serve with a small bowl of fish sauce with sliced chili for dipping.