Orange Jell-O Salad

1 large container low-fat cottage cheese
1 large can crushed pineapple, drained
1 can mandarin oranges, drained
1 large box orange Jell-O
1 (12 ounce) container Cool Whip

Mix all ingredients together and mix well scraping the bottom to get all the Jell-O mixed in well. Refrigerate and let set for 1-2 hours.