Place eggs into a large bowl or the bowl of your stand mixer and mash with a fork or using the paddle attachment of your stand mixer. Add mayonnaise and mix together until well-combined and eggs are light and fluffy. Add salt and ground black pepper to taste.
Assemble sandwiches by spreading egg salad onto one half of croissant, topping with bacon and avocado slices. Top with remaining half of croissant.
Egg Salad Sandwich with Bacon and Avocado Recipe https://addapinch.com/egg-salad-sandwich-with-bacon-and-avocado-recipe/