This recipe is from my late Aunt Renee. It's one of my favorite Jell-o salads and it makes a lot so it's great for company.
ORANGE JELL-O SALAD
2 large boxes (6 oz, each) orange flavored Jell-o
4 cups boiling water
1 (12 oz) can orange juice concentrate, thawed
3 small cans mandarin oranges, with juice
3/4 cup ice or cold water
In a large bowl, dissolve Jell-o in boiling water. Stir in orange juice concentrate, mandarin oranges with juice, and ice until thoroughly combined and ice melts. Pour into a 9x12 glass dish and refrigerate at least 6 hours.