Remove the seeds from the pumpkin and cut it into cubes with the skin on.
Place the pumpkin in a steamer and steam for 10 minutes.
Transfer the steamed pumpkin to a bowl and let it cool.
Cut the cucumber and cherry tomatoes into bite-size pieces.
Cut chicory and iceberg lettuce into bite-size pieces.
Add all ingredients to the bowl and mix with Greek yogurt, salt, and pepper.
Serve on a plate to finish.