Make the Big Mac sauce

• Mix the mayonnaise, ketchup, mustard and pickle relish in a bowl.
• Season with smoked paprika and stir until smooth.

Season the beef

• Place the ground beef in a bowl.
• Add the garlic powder, salt and black pepper and mix gently.

Press the beef onto the tortillas

• Spread a thin, even layer of beef over each tortilla, right to the edges.
• Press it down so it sticks to the tortilla.

Cook the tacos

• Heat a little oil in a frying pan over medium-high heat.
• Cook the tortillas beef-side down until browned and cooked through, about 4 min.
• Flip, top with cheddar and let it melt for 1 min.

Fill and serve

• Spread Big Mac sauce over the melted cheese.
• Top with shredded lettuce, diced onion and pickles.
• Fold the tacos and serve immediately.