Shave zucchini lengthwise into thin slices using a vegetable peeler or v-slicer. Discard the slices that are mostly skin.
Season zucchini with salt, place a rack, and set aside until slices are pliable enough to roll without breaking, about 10 to 15 minutes.
Whisk olive oil, lemon juice, garlic, and salt to taste in a small bowl.
Pat the zucchini dry with paper towels, then, loosely coil each slice into a cylinder, like a jelly roll, and stand them upright on a plate. Drizzle with the dressing. (You may not use it all.)
Crumble Feta and scatter pine nuts on top. Garnish with torn mint leaves.