In a blender, put the flour, eggs, the Greek yoghurt, a pinch of salt, and the olive oil. Blend until the mixture is smooth and lump-free.
Heat a non-stick pan over medium heat. Pour a small amount of the batter into the pan, tilting it to spread the batter evenly. Cook for about 1-2 minutes on each side, or until the crepe is lightly golden. Repeat with the remaining batter and set the crepes aside.
In a mixing bowl, combine the cubed salmon fillets with the juice and zest of the lime, the salt and pepper. Add the Greek yoghurt, the chopped coriander, and the sliced chilli pepper (if using). Mix well, ensuring the salmon is evenly coated with the marinade.
Cover the bowl with plastic wrap and let it marinate for at least 30 minutes, allowing the salmon to absorb the flavours.
After marinating**, Lay a crepe flat on a plate. Place a few spoonfuls of the salmon mixture onto the centre of the crepe.
Add a dollop of Greek yoghurt over the salmon mixture before folding the crepe into a neat wrap or roll.
Arrange the folded crepes on a serving plate. Garnish with extra chopped coriander and a wedge of lime, if desired.
Serve the salmon crepes, either as an appetizer or a light main course.