Bucatini with Italian Tuna and Kalamata Olives

Bucatini with Italian Tuna and Kalamata Olives

[ingredients]1 pound dried Bucatini pasta
Kosher salt
4 tablespoons extra virgin olive oil
1 cup small diced red onion
4 clovers garlic, thinly sliced
3 teaspoon crushed red pepper flakes
¬ĺ¬†cup tomato paste,¬†preferably¬†Italian
1¬Ĺ…