Cooking the Vegetables
First, place the potatoes, carrots, and green beans in a pot. Next, cover with water and add a pinch of salt. Then, bring to medium heat, cover, and cook for about 20 minutes, or until the vegetables are al dente.

Assembling the Salad
After that, drain the vegetables well and transfer them to a bowl. Then, add the raisins and mayonnaise, mixing thoroughly to combine all the ingredients.

Finishing Touch
Finally, transfer the mixture to a glass serving dish and enjoy this delightful Christmas salad!