- In a small bowl, combine tzatziki and dill.
- Spread mixture on both halves of each bun.
- Break salmon into large chunks and divide evenly between two bottom half buns. Top with cucumber slices and remaining half bun. Cut each sandwich in half to make four half-sandwiches.
- Serve with a spinach salad.
: Replace salmon by another firm fish. Garnish with strips of colourful sweet pepper.