Herbaceous Shrimp Salad

Ingredients

• 2 cups mayonnaise
• 1 medium red onion, finely chopped
• 1/2 teaspoon coarse ground black pepper
• 1 teaspoon kosher salt
• 1 lemon, quartered
• 3 celery stalks, finely chopped
• 2 tablespoons white wine vinegar
• 4 cups precooked shrimp, thawed
• 2 teaspoons Dijon mustard
• 2 tablespoons fresh dill, chopped