Cook the macaroni in a big pot of well‑salted boiling water until just tender (al dente), about 8‑10 minutes. Drain and rinse under cold water to cool it down and stop it sticking. Leave to drain well, you don't want extra water in your salads.
Divide the cooled pasta into three large bowls—one for each salad variety.
For the Hawaiian salad: Stir through your grated carrot, ham, pineapple, peppers, and spring onions. Make up the dressing and stir it through the salad. Adjust seasoning to taste.
For the pesto‑chicken & broccoli salad: Combine the pasta with the diced chicken and broccoli. Fold through the pesto. Adjust seasoning to taste.
For the Loaded Ranch salad: Mix the pasta, bacon, spring onions, and sour cream dressing. Gently stir until it’s all evenly coated. Adjust seasoning to taste. I think this salad would be really nice to have chopped crisp lettuce through it. I would use cos or romaine lettuce.
Chill well, ideally at least an hour, to let the flavours settle in. Serve cold or at cool temperature.