Dec 24 may be too late to post a Christmas recipe... but here's one anyway. Olivier salad, originally from Russia, is now a holiday tradition in many countries.
Boil the diced potatoes, peas, and carrots until tender, around 5 minutes on the stovetop. (Or throw them all into an Instant Pot steamer basket with a cup of cold water and use the Steam setting at High Pressure for 1 minute, quick release.)
Mix all the ingredients together, chill until cold, then enjoy.
Notes
For a more traditional Olivier salad, dice your potatoes, carrot, and onion really really small. Sometimes I keep the potatoes in larger chunks, which gives a different texture to the dish (more like a typical American potato salad).