You can use real mayo or miracle whip, whichever you prefer. Miracle whip will add a bit of sweetness.
If you aren’t a fan of sweetness in your salad, swap out the sweet relish for dill relish.
Be sure to rinse your kidney beans well. Some brands leave a strange mushy layer at the top and it’s not good in the salad.
You can use light red kidney beans as well. This is totally up to you. Light kidney beans don’t have as much flavor as dark red.
Store in the fridge in an airtight container for up to 5 days. Do not freeze.