Cook rigatoni pasta according to package instructions. Drain and set aside.

In a large pan, heat olive oil over medium heat. Add finely chopped onions and sauté until they become translucent.

Add minced garlic and cook for an additional 1-2 minutes until fragrant.

Dice halloumi into small cubes and add it to the pan. Cook until the halloumi is golden brown on all sides.

Pour in passata (tomato sauce) and stir to combine. Simmer for 10 minutes, allowing the flavors to meld.

Season the sauce with salt, pepper, and fresh basil. Adjust seasoning to taste.

Add the cooked rigatoni to the sauce and toss until the pasta is evenly coated.

Serve the Halloumi Pasta with Rigatoni hot, garnished with additional basil and grated halloumi if desired. Enjoy your delicious and cheesy pasta!