First, gather all your ingredients. Make sure the imitation crab meat is well shredded or chopped into bite-sized pieces. Finely dice the celery and red bell pepper, and chop the green onions.

In a large mixing bowl, combine the mayonnaise, lemon juice, Dijon mustard, and Old Bay seasoning. Whisk these ingredients together until smooth and well-blended. This dressing gives the crab salad its creamy, tangy flavor.

Add the shredded imitation crab meat, diced celery, red bell pepper, and chopped green onions to the bowl with the dressing. Mix everything together gently until the dressing coats all of the ingredients. Be careful not to over-mix, as you want to keep the texture of the crab meat and vegetables intact.

Taste the salad and add salt and black pepper according to your preference. If you like a bit more tanginess, you can add a bit more lemon juice.

For the best flavor, cover the bowl with plastic wrap and chill the salad in the refrigerator for at least 30 minutes before serving. This allows the flavors to meld together beautifully.

When ready to serve, give the salad a final stir and garnish with freshly chopped parsley for a pop of color and freshness. Serve it on a bed of lettuce, with crackers, or as a filling for sandwiches.