Clean and wash the lettuce and tomato. Drain lettuce well and cut into bite-sized pieces. Cut the tomato into slices. Peel skin from the sausage. Cut sausage into fine slices and halve.
Wash parsley and chives and dab dry. Chop parsley finely, chives into small rolls. Cream eggs, 2 tablespoons of water, salt and nutmeg with the whisk of the hand mixer.
Add the herbs, except for some for garnishing, and mix in. Heat 1 teaspoon of fat in a pan (25 cm Ø). Pour in the egg mixture and let it simmer for about 5 minutes under a closed lid at low heat.
Remove the omelette from the pan and keep warm. Heat the remaining fat and steam the sausage and tomato slices for about 3 minutes at medium heat. Season with salt and pepper. Spread the tomato and sausage mixture on one half of the omelette and fold the other half over.
Mix lemon juice and dill and mix with the salad. Arrange omelette and salad on a plate. Sprinkle the omelette with the rest of the chopped parsley and chive rolls and serve garnished with parsley as desired.