Add the ground beef, salt, pepper, and garlic powder and rice vinegar in a large mixing bowl. Wear gloves and use your hands to combine the flavoring with the ground beef.
Once combined, divide and roll the patties to golf size balls that weigh about 2 ounces.
Prepare your tortillas, cheese, sauce, and the remaining ingredients. Place a griddle on high heat—season and oil up the griddle. Lightly cook your tortillas and set aside.
Place the patties onto the griddle and space each patty out with room to spread.
After cooking the patties for 1-2 minutes, place the tortilla on the top and smash it down with a press or spatula. You’ll want the patty to be very thin so both sides are cooked.
Allow the patties to cook for another 2-3 minutes or until the color of the beef has darkened and it’s crisp on the bottom.
Once done, slide your spatula under the patty and flip the taco. Be sure not to sear the tortilla; just add a nice crisp to the other side of the tortilla.
Pre-melt your cheese slice on the griddle for 10 to 15 seconds before placing the slightly melted cheese slice on top of the cooked patty.
Remove your burger taco from the griddle and top with shredded lettuce, red onions, and teriyaki sauce. Enjoy!