Prepare the Ingredients:
Rinse and halve the grapes.
Dice the celery and red onion into small, even pieces.
Toast the walnuts or pecans in a dry skillet over medium heat for 3–4 minutes until fragrant (watch closely to prevent burning).
Mix the Dressing:
In a small bowl, whisk together the mayonnaise, honey, lemon juice, salt, and pepper until the dressing is smooth and well combined.
Assemble the Salad:
In a large mixing bowl, combine the halved grapes, diced celery, red onion, and toasted nuts.
Pour the dressing over the salad and gently toss until all ingredients are evenly coated.
Chill and Serve:
Cover the bowl with plastic wrap or a lid and refrigerate for at least 30 minutes. This resting time allows the flavors to meld and the ingredients to chill for a refreshing bite.
Give the salad a quick stir before serving. Adjust seasoning with extra salt, pepper, or lemon juice if desired.