In a bowl, combine the cheese, mint and milk until creamy.
On a work surface, split the pita in half to get two discs. Spread the inside of the bread with the cheese mixture. Layer with the cucumber slices and close the pita. Cut into four pieces.
To pack your lunch, it is better to make this sandwich in the morning to avoid the pita being soaked with the cucumber water. If you prepare it the night before, add two lettuce leaves on which you will spread the cheese mixture.
Recipes with the "Healthy Pick" stamp have been evaluated by a registered dietitian member of the Ordre professionnel des diététistes du Québec.