Cook pasta: Bring a large pot of salted water to a rolling boil. Add rotini pasta and cook until al dente, approximately 8-10 minutes. Drain and rinse under cold water to cool.

Prepare dressing: In a mixing bowl, whisk together mayonnaise, Greek yogurt, curry powder, lemon juice, and honey until smooth and creamy.

Combine salad ingredients: In a large bowl, mix cooled rotini, chopped celery, diced red onion, shredded carrots, raisins, and toasted almonds.

Mix together: Pour the dressing over the pasta mixture and gently toss to coat all ingredients evenly.

Chill: Cover with plastic wrap and refrigerate for at least 30 minutes to allow flavors to meld.