Can I make the special sauce ahead?
Yes. Mix the mayonnaise, ketchup, mustard, minced pickles, grated onion, grated garlic, vinegar, and salt up to 2 days in advance and refrigerate in an airtight container.
How do I get the beef properly smashed?
Place a small portion of ground beef (about 2–3 oz) onto the tortilla and press firmly with a spatula for 2–3 seconds to maximize contact with the heat and create a browned crust.
What size tortillas work best?
Small flour tortillas (6-inch) are ideal because they cook quickly with the beef and support the toppings without becoming too floppy.
Can I substitute ground beef?
Ground turkey or ground chicken will work but will lack the rich, caramelized crust of beef. Cook at the same temperature and watch for doneness (165°F internal temp).
How do I store leftovers?
Store cooked beef and special sauce separately in airtight containers for up to 3 days; assemble fresh tacos when ready to eat.