Prepare the Pasta: Bring a pot of salted water to a rolling boil. Add the pasta and cook until it reaches an al dente texture, following the instructions on the package. Drain the pasta and rinse it under cold water to cool it down, then set aside.

Prepare the Dressing: In a mixing bowl, whisk together mayonnaise, pineapple juice, sour cream, Dijon mustard, apple cider vinegar, honey, garlic powder, salt, and pepper until smooth. Adjust seasoning to taste.

Combine the Salad: In a large bowl, combine the cooked pasta, diced ham, pineapple tidbits, red bell pepper, and green onion. Drizzle the dressing over the salad and toss thoroughly to ensure everything is evenly coated.

Refrigerate and Serve: Cover the salad and let it chill in the fridge for at least 1 hour to let the flavors combine. Serve cold, topped with extra green onions if preferred.