Boil water in a pot and cook the spaghetti according to package instructions.

In a pan, heat olive oil over medium heat, add minced garlic and red pepper flakes, and sauté until fragrant.

Add the sardines with their sauce and cook for a few minutes.

Stir in the chopped parsley and mix well.

Drain the pasta and combine it with the sauce in the pan. Toss to coat evenly.