Slatat Faqqous

Ingredients (for 4):
- 1 cucumber
- 2-3 diced tomatoes
- 1/4-1/2 white onion
- 1/2 cup chopped fresh parsley
- 1 tablespoon apple cider vinegar (or lemon/lime juice)
- 2 tablespoons olive oil
- 1/2 teaspoon tebel (3/4 coriander, 1/4 caraway)
- 1/2 teaspoon dried mint
- 1/2 teaspoon salt, 1/4 black pepper
- tuna (optional)