Big Mac Tacos

Make tacos: In a medium skillet over medium heat, heat oil. Add ground beef and cook, breaking meat up with a wooden spoon, until no longer pink, 4 minutes. Drain fat. Return meat to skillet and add taco seasoning and season with salt and pepper. Separate hamburger buns and, using a rolling pin, roll out hamburger buns to ¼" thick. Place a slice of cheese on top of each bun and fold like a taco. Place buns in a toaster and toast until cheese is melty and buns hold their shape, 3 minutes. Make sauce: In a medium bowl, whisk together mayonnaise, yellow mustard, ketchup, pickle relish, apple cider vinegar, garlic powder, onion powder, paprika, and salt. Build tacos: Add lettuce, pickles, and taco meat to shells, then drizzle with sauce.