Cut garlic in half lengthwise, remove the core, and mince.

Boil a large pot of water, add salt (not listed in ingredients), and cook spaghetti according to package instructions. Drain well.

Heat olive oil and garlic in a frying pan over low heat until fragrant. Add saba canned fish and sauté over medium heat for 1–2 minutes. Add chopped tomatoes, salt, pepper, and 3 tbsp of saba canned juice. Simmer over medium-low heat for 4–5 minutes.