Preheat oven (electric cooker: 200 °C/circulating air: 180 °C/gas: see manufacturer). Wash sweet potatoes, cut lengthwise into slices. Brush the slices with 2-3 tbsp. oil, salt them and place them next to each other on a baking tray lined with baking paper. Bake in a hot oven for about 25 minutes.
Meanwhile roast sesame seeds in a pan without fat while turning, remove. Clean, wash, shake dry and chop the lamb's lettuce. Mix half sesame seeds, lettuce and 1 tbsp. oil in a bowl. Cut avocados in half and remove seeds. Remove the flesh and crush finely with a fork. Stir in lime juice.
For the poached eggs, boil 2 litres of water with vinegar in a pot. Stir vigorously with a fork in the water to form a strudel. Beat the eggs one by one in a cup, add 2 of each in the water one after the other. Carefully place the egg white around the egg yolk with two tablespoons. Let the eggs simmer for 3-4 minutes (do not boil!), then lift them out and let them drain (see poaching trick on page 30).
Pile the avocado cream, salmon, lettuce and eggs onto the sweet potato slices. Sprinkle with remaining sesame and pepper.
Using a skimmer, remove the poached eggs one by one from the cooking water and place in warm salted water until serving.