Season the beef

• In a bowl, mix the ground beef with the salt, pepper, paprika, onion powder and garlic powder.

Make the sauce

• Combine the mayonnaise, ketchup, mustard, sriracha and black pepper in a bowl.
• Mix until smooth and set aside.

Spread the meat on the tortillas

• Spread the seasoned beef evenly and as thinly as possible onto each tortilla using a fork.

Cook the tacos

• Preheat the pan and lightly grease it with oil; it should be hot enough that the meat doesn't stick.
• Place the tortilla meat side down in the pan and leave for 3-4 min, depending on how well you want the meat cooked.
• Flip the tortilla and place a cheese slice on top.
• Cover the pan with a lid for 30 seconds, or longer if you want the tortilla crispier.

Serve

• Remove the tortilla from the pan and top with lettuce, onion, gherkins and the sauce.