My aunt brings this 3 ingredient dish to every gathering. It vanishes instantly and everyone practically begs for her secret.

For a slightly richer version that still respects the three-ingredient spirit, you can swap in a zesty Italian vinaigrette with extra garlic, or choose multicolored rotini for more visual interest. If you need to stretch the salad for a larger crowd, cook up to 16 ounces of pasta and increase the dressing proportionally; the tomatoes can stay at 2 cups or go up to 3 cups if you like it extra juicy.

For a make-ahead option, toss the warm pasta with just enough dressing to lightly coat, chill, and then add the tomatoes and more dressing a couple of hours before serving so they stay bright and firm.
Food safety tips: Cool the pasta quickly after draining to keep it out of the temperature “danger zone” (40°F–140°F) for too long. Once assembled, refrigerate the salad promptly and keep it chilled until serving. At gatherings, try not to leave the pasta salad at room temperature for more than 2 hours (1 hour if it’s very hot outside); after that, discard any leftovers that have been sitting out. Store properly chilled leftovers in the same covered container in the refrigerator and enjoy within 3–4 days, adding a small splash of fresh dressing to revive the texture if needed.