Place the diced hard-boiled eggs into a medium mixing bowl.
Add the cottage cheese, Dijon mustard, sea salt, and black pepper to the bowl.
Gently fold the ingredients together using a spatula until the eggs are evenly coated and the mixture is cohesive.
Stir in the fresh chives.
Transfer to a serving bowl and garnish with a dusting of smoked paprika.
Serve immediately or refrigerate in an airtight container for up to 3 days.