Creating Delicious Ground Lamb Tacos with Tzatziki Sauce requires just a few simple steps:

1. Prepare Tzatziki Sauce: In a medium bowl, combine Greek yogurt, grated cucumber, minced garlic, fresh dill, lemon juice, salt, and pepper. Mix well and refrigerate to allow the flavors to meld.

2. Cook Lamb Mixture: In a large skillet, heat olive oil over medium heat. Add finely chopped onion and minced garlic, sautéing until soft.

3. Season Lamb: Add ground lamb to the skillet, mixing in ground cumin, paprika, ground cinnamon, salt, and pepper. Cook until the lamb is browned and cooked through, about 10-12 minutes.

4. Warm Tortillas: While the lamb cooks, warm tortillas in a separate skillet or microwave until pliable.

5. Assemble Tacos: Layer cooked lamb, shredded lettuce, diced tomato, and feta cheese on each tortilla. Drizzle with tzatziki sauce before serving.