First, mash the eggs with a fork until the eggs are broken down into pieces (or until desired consistency). Add the mayonnaise and dijon mustard, and stir to combine.
Next, add the smoked paprika and black pepper. Stir well to combine.
Taste the egg salad to determine if you want to add salt. If desired, salt to taste.
Chill the egg salad in the refrigerator for at least a couple of hours or until cold.
To serve, spread the egg salad on top of the toasted everything bagel halves and top with sliced cucumber and/or thinly sliced radishes (or whatever toppings you enjoy!)
Enjoy!