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

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

Add the sardines and chopped tomatoes, season with salt and pepper, and simmer for about 10 minutes.

Drain the pasta and add it to the sauce, tossing to combine.

Serve hot, garnished with chopped parsley.