Fry the cod fillet in a well-heated pan in melted butter, 2 minutes each. from each side. Cool down. Pour boiling water over squids and lightly fry in the same oil, 1 min. Cool down. Prepare the dressing: mash blue cheese with a fork, mix thoroughly with yogurt, lemon zest and juice. Boil orzo until tender, rinse with cold water and pat dry. Cucumbers cut into small cubes, olives cut into halves. Mix orzo, green onions, cucumbers and olives with dressing. Break the cod into flakes and add to the orzo along with the squid. Put the resulting mixture on plates on top of lettuce leaves.