Begin by thoroughly washing the tender inner stalks of celery. Slice them thinly at a 45-degree angle, creating beautiful, bite-sized pieces.

Finely mince the shallot and slice the pitted dates into thin slivers. Chop the fresh mint coarsely and crumble or cube the feta cheese.

Heat a dry skillet over medium heat and add your walnuts. Toast for about 2-4 minutes, stirring frequently, until fragrant and lightly golden.

In a medium bowl, whisk together lemon juice, white wine vinegar, and minced shallot. Gradually drizzle in olive oil while whisking.

In a large mixing bowl, combine sliced celery, chopped celery leaves, toasted walnuts, date slivers, crumbled feta, and chopped mint.

Transfer your mixed salad to a serving platter. It's best enjoyed immediately while fresh and crunchy.