Rollo De Salmon Ahumado Con Salsa Tartar Y Lentejas (Smoked Salmon Roll with Tartar Sauce and Lentils)

INGREDIENTS

• 2 teaspoons finely chopped fresh parsley
• 2 teaspoons finely chopped fresh chives
• Toasted baguette slices, for serving
• 2 tablespoons finely chopped gherkins
• 2 teaspoons Dijon mustard
• Salt and freshly ground black pepper
• 1/3 cup mayonnaise
• 1/2 cup small French lentils, cooked until just tender and drained
• 1 tablespoon olive oil
• 9 ounces smoked salmon, long slices (the slices should not be so thin that they fall apart)
• 2 spring onions, white part only, very finely chopped
• 1 tablespoon capers, finely chopped