Ingredients: For the Egg Salad: 1. 6 hard-boiled eggs, peeled and chopped 2. 1/4 cup mayonnaise 3. 1 teaspoon Dijon mustard 4. 1 teaspoon lemon juice 5. 1 tablespoon chopped chives (plus more for garnish) 6. Salt and pepper to taste For the Sandwich:…