Cook pasta according to package directions.

Drain pasta and rinse with cold water.

Set pasta aside to cool.

In a small bowl, combine Greek seasoning, mayonnaise, and olive oil.

Whisk until smooth.

Chop orange and green bell peppers into bite-sized pieces.

Drain sliced black olives and halve them.

Drain sun-dried tomatoes packed in oil, and chop them.

In a large bowl, combine cooked pasta, seasoning mix, bell peppers, pimentos, black olives, and sun-dried tomatoes.

Gently stir to combine all ingredients.

Crumble feta cheese on top right before serving.

Refrigerate for several hours or overnight to allow flavors to meld.

Before serving, drizzle with additional olive oil if needed.