Freezing potato salad is possible but not recommended due to texture and flavor changes after defrosting. Mayonnaise-based potato salads do not freeze well because mayonnaise separates when frozen.
Southern Living on MSN

Can You Freeze Gelatin Salad?

For a refreshing treat, freeze leftover gelatin salad in small portions or molds. You can enjoy it frozen or semi-frozen as a ...
Abra Odenwalder on MSN

Frozen Cranberry Salad

We serve frozen cranberry salad as part of our Thanksgiving meal, which means during dinner. Yes, they could be served as ...