Pick up the tuna a little. Cut the eggs into slices. Cut the cheese into cubes. Halve the peppers, remove the stems, remove the core and remove the white partitions. Wash the peppers and cut into cubes. Peel and dice the onions. Dice the pickles as well.
Mix all ingredients and season with salt, pepper and sugar. Mix mayonnaise with yogurt and fold in.
Let the salad steep and season again before serving.
Tip: Tomatoes can also be used instead of the pickles. Tastes very good with onion bread.