Fresh cucumber and tuna salad (no mayo)

It's picnic season y'all and we won't settle for the boring pasta salad this year, I'm telling you ! So here's a delicious cucumber and tuna salad, so refreshing and no mayonnaise is involved.
Red onion for a little kick, some mustard in the dressing to spice things up and a good amount of parsley for some freshness, the perfect summer salad ! Serve with with crispy bread or some raw veggies.
If you have a can of tuna laying around waiting to be used (or several), this is the ideal recipe. Throw it in a jar or a container and take it with you wherever you go, share with your friends. Or don't.
If you want a different idea to use your canned tuna, you can try making mini quiches too :

Fresh cucumber and tuna salad :
- 360 g canned tuna
- 130g greek yogurt
- 1 tsp mustard
- 1/2 red onion
- 2 tbsp fresh parsley
- 1/2 cucumber
- 1/2 lemon juice
- Salt and pepper
Open and drain the canned tuna.
Chop the red onion very small.
Cut the cucumber in half lengthwise. Take out the seeds and dice the cucumber.
In a bowl, mix together mustard, yogurt, lemon, salt and pepper.
Add the rest of the ingredients and mix well.
Store in the fridge until ready to serve.
Serve with crispy bread !