Avocado Egg Salad Sandwiches

Ingredients (8)

• 8 large hard-boiled eggs
• ⅓ cup finely chopped celery
• ⅓ cup light or regular mayonnaise
• 1 medium avocado,
• 1 teaspoon mustard
• celery salt, salt and pepper,
• 14 slices white bread
• 28 thin slices cucumber