Trim and discard ends from endive and slice heads crosswise on the diagonal.
In a large bowl, mix lemon juice, olive oil, horseradish to taste, mustard, and pepper.
Add endive, salmon, and capers to bowl and mix to coat. Press eggs through the large holes of a grater, or chop.
Spoon salad onto plates; top with eggs. Add salt to taste.
Servings 0
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.