Preheat the oven to 200°F (95°C). Place a baking sheet inside to keep the finished tacos warm while you cook the remaining batches.
In a large bowl, combine the ground beef, grated onion, garlic powder, oregano, cumin, thyme, rosemary, salt, black pepper, and Aleppo pepper. Mix until evenly combined.
1 lb (454 g) ground beef, ½ cup (75 g) grated yellow onion, 1 tsp (3 g) garlic powder, 1 tsp (1 g) dried oregano leaves, 1 tsp (2 g) ground cumin, ½ tsp (0.5 g) dried thyme leaves, ¼ tsp (0.25 g) dried rosemary leaves, 1½ tsps (9 g) kosher salt, ½ tsp (1 g) black pepper, ½ tsp (1 g) Aleppo pepper
Divide the meat mixture into 8 equal portions. Press each portion into a thin, even layer on one side of a flour tortilla, spreading the meat almost to the edges.
8 street sized flour tortillas
Heat a large skillet over medium-high heat and lightly coat it with cooking spray.
cooking spray
Place a tortilla in the skillet with the meat side down. Press firmly with a spatula or burger press so the meat makes full contact with the skillet. Cook for 2 to 3 minutes, until the meat is browned and develops crispy edges.
Flip the taco and cook for 30 to 60 seconds more, until the tortilla is warm and lightly crisped.
Transfer the taco to the warm baking sheet and repeat with the remaining tortillas.
Top each taco with tzatziki, tomato, cucumber, red onion, parsley, and french fries.
diced tomato, diced cucumber, thinly sliced red onion, cooked French fries, chopped fresh parsley, tzatziki
Serve immediately with lemon wedges.
lemon wedges