This is a very delicious, and quite easy recipe. I personally use my Thermomix kitchen robot to steam the potatoes, and carrots, but that is a personal choice-I love steam vegetables. You can also boil them in a large sauce pan for 10-15 minutes or until tender. This particular step is entirely up to you.

Cut the potatoes, and carrots in small cubes.
Place the water in the Thermomix bowl.
Add the Thermomix internal steam basket with eggs inside
Place the Thermomix lid, and remove the measuring cup.
Place the Varoma baskets with the potatoes, and carrots on top of the lid.
Cover the Varoma dish and steam***15MIN/VAROMA/Speed 2
Remove the Varoma basket, and take out the internal steam basket with the eggs in it.
Place the Varoma on top of the lid, and continue steaming the potatoes and carrots ***5MIN/VAROMA/Speed 2

While the potatoes are cooking, peel the eggs, and discard shells. Cut the eggs into quarters, and add them to the serving bowl.
Once the potatoes are cooked place them in the serving bowl with the eggs.
Add the crab meat, the shopped green onions, and tuna.
Add the mayonnaise ,and mix well. Don't forget to add salt.

In my opinion, this salad needs at least a couple of hours in the fridge to cool before serving, but I know a lot of people that prefers to eat it while it is still warm.