Strain the tuna, set aside. Slice the eggs into wedges.

Take out the ends of the cucumber and peel some of the sides. Slice into half and take out the seeds. Slice into half circles.

Slice the red onions, remove the seeds and slice the tomatoes, roughly chop the lettuce. Place everything in a bowl.

To make the sauce; mix mayonnaise, plain yogurt, garlic, salt and pepper, lemon juice, sugar, and a little bit of oil from the tuna ( optional ).

Pour in the sauce and toss until the salad is fully coated. Enjoy !