Step 1

Rince the lentils under running water.

Cook according to package directions. Rinse the lentils in cold water until they are chilled, and set aside.

Step 2

Cut the gruyère into cubes

Peel the carrots and grade them.

Cut the apple into cubes.

Step 3

To prepare the dressing, combine the mustard, the sherry vinegar and the olive oil. 

Step 4

Toss the dressing with all the salad ingredients. Taste and add more salt and pepper if necessary.