In a small mixing bowl, whisk together salt, garlic powder, basil, oregano, cinnamon, dill, black pepper, onion powder, rosemary, and nutmeg.If you own an electric spice or coffee grinder, pour the mixture into the grinder and pulverize it so everything has a similar texture; however, this is totally optional.
Prep Taco Fillings
In a medium mixing bowl, toss together diced red onion, diced cucumber, and red wine vinegar. Cover and set aside.
Heat a large, heavy skillet over high heat until a drop of water sizzles away immediately. Add 1 tablespoon of olive oil and swill to coat the bottom of the pan.
Into the hot pan, break off the ground meat a bit at a time until the entire amount is covering the bottom of the skillet. For optimal flavor, allow the meat to sizzle and caramelize for a couple minutes before you move it or break it up.
Once the the ground meat has sizzled a bit, stir in the chopped onions and garlic. Reduce the heat to medium. Season the meat mixture with 2 teaspoons of Greek seasoning. Stir occasionally to break up, and continue cooking until the meat has browned. Drain off any fat in a colander if needed. DO NOT rinse the meat! Taste meat mixture and season with additional Greek seasoning, salt, and pepper as desired.
Assemble & Serve
Gather tortillas, arugula, seasoned ground meat, yogurt, cucumber-onion salsa, tomatoes, feta, fresh basil, and lemon wedges. Assemble tacos according to your own preferences.
Suggested: Layer down the middle of one flour tortilla, in this order: arugula, seasoned ground meat, yogurt, cucumber-onion salsa, tomatoes, and feta. Garnish with fresh basil and a lemon wedge.
For nearly effortless assembly, serve everything up Taco Bar Style, and let everyone make their own tacos!