1/2cupmayonnaiseor combination of mayo and Greek yogurt
2teaspoonsprepared creamy horseradish
2tablespoonsfresh parsleyminced (optional)
Salt and pepper to taste
Combine roast beef, onions, celery and chopped pickles in a medium bowl.
Stir in mayonnaise, horseradish, onion powder, and garlic powder. Season to taste with salt and pepper. Stir in minced parsley if using.
For a smoother spread: Pulse the celery, onions, and dill pickle in a food processor a few times. Transfer to a medium bowl. Pulse the roast beef in the food processor a few times. Add to the bowl and proceed with the recipe.