Gather the ingredients for your Big Mac tacos. Lightly grease a frying pan, then preheat over medium-high heat.
To make the sauce, combine the mayo, pickle juice, mustard, vinegar, paprika, onion powder, salt, garlic powder, and sugar in a small bowl and set aside.
Spread the ground beef thinly over the tortilla, then place them onto the smoking hot pan, beef side down. Press the Big Mac tortilla down so the meat constantly touches the pan, and cook for 2 to 3 minutes until the beef turns brown.
Lower the heat, then flip the tortilla to toast it. Place a slice of cheese over the meat and cover the frying pan for 2 minutes to let the cheese melt.
Remove the pan from heat and repeat with the remaining ingredients. Add pickles and lettuce on top.
Top with the burger sauce, and you're done!