Bring a large, generously-salted pot of water to a boil. Add the macaroni and cook according to package instructions. Drain
in a colander and run under cold water until the macaroni is completely cooled. Shake the colander
well to get rid of excess water. Transfer the macaroni to a large bowl.
While the macaroni is cooking, make the dressing
. Combine the yogurt, feta
, olive oil
, lemon zest
, lemon juice, 2 teaspoons salt, pepper and garlic in a food processor
until well mixed. Scrape the dressing into the bowl with the macaroni. Add the tomatoes
, carrots, scallions
to the bowl and toss well. Check for seasoning. Add more salt and pepper if desired.