Macaroni Medley Salad

Ingredients

• 1 package (7-1/4 ounces) macaroni and cheese
• 1/4 cup milk
• 1/4 cup butter
• 1/2 cup mayonnaise
• 2 tablespoons Dijon mustard
• 4 hard-boiled large eggs, chopped
• 2 medium tomatoes, chopped
• 1 small cucumber, peeled and chopped
• 2 tablespoons chopped onion
• 1 dill pickle, chopped
• 1/2 teaspoon salt
• 1/8 teaspoon pepper