Mix the beef seasoning ingredients (or open a packet of taco seasoning if you're in a hurry) in a small bowl. Set aside.
Heat a large skillet over medium-high heat with nonstick cooking spray. Once tha skillet is hot, add the beef and use a spatula to break it apart. Sprinkle the seasoning mix over the top of the meat. Continue to cook the beef until no pink remains.
While the beef cooks, use a pizza cutter or knife to cut the tortillas into thin strips. Optional: cut the strips in half. (You can also add a bit of lime juice and sea salt.)
Once the beef is fully cooked, transfer it to a plate and set aside. Try to keep most of the remaining fat in the pan. Add the tortilla strips to the pan, stirring often to avoid burning. Pan fry until crispy.
If you're using queso fresco, use a fork to crumble the cheese.
For the creamy salsa dressing, simply mix the Greek yogurt and salsa together in a small bowl.
Add the salad mix to a large bowl before adding the beef, queso fresco, and tortilla strips on top. Top with creamy salsa dressing before serving.