Italian Pasta Salad

3 cups uncooked tri colored rotini
1 cup grated parmesan cheese
1 - 8 ounce bottle Italian salad dressing
1/2 cup chopped red bell pepper
1/2 cup red onion (cut into round slices, then each slice in 1/3)
2 cups broccoli flowerets
1/2 cup pitted ripe olive slices

Cook pasta and drain. Allow to cool. Mix everything together. Chill and serve.