Wash and dry the rocket and place in a tall mixing bowl. Add olive oil, sunflower seeds, parmesan and garlic cloves and puree everything with the magic wand. Season to taste with salt, pepper and possibly a squirt of lemon juice.
In the meantime, wash, dry and quarter the tomatoes, remove the seeds with a knife. Cut the tomatoes and feta into small cubes.
Now mix the pasta with rocket pesto and serve with the tomatoes and feta.