This BLT pasta salad recipe from Budget Bytes is simple to make, uses spinach instead of lettuce (less wilting is a bonus), and uses ranch dressing ... and it's delicious cold or at room temperature.
Drain the pasta in a colander and run it under a cold tap until cooled. Stir the dressing, cucumber, tomatoes, basil, feta and olives, if using, into the pasta and serve.