You can serve the bundles with tzatziki sauce for dipping. It can be store-bought, or homemade. To make the latter, set a sieve over bowl. Coarsely grate half medium English cucumber into the sieve. Press on the cucumber and squeeze out as much liquid as you can. Discard the liquid. Mix in 1 1/4 cups thick, Greek-style yogurt, 2 Tbsp. chopped fresh mint or dill, 1 minced garlic clove, 1/2 tsp. finely grated lemon zest, 1 Tbsp. lemon juice, and salt and white pepper to taste. Cover and refrigerate until needed.