01 - Divide the ground beef into 8 equal portions and roll into balls. Season each ball evenly with smoked paprika, garlic powder, salt, and black pepper.
02 - Set a large skillet or flat griddle over medium-high heat. Add a light coating of vegetable oil and allow it to shimmer before cooking.
03 - Place 2 seasoned beef balls onto the hot surface. Immediately press each one down firmly using a sturdy spatula to form thin, even patties. Work in batches to avoid overcrowding.
04 - Cook the patties for approximately 2 minutes until the edges turn deeply golden and crisp. Lay one slice of cheddar cheese over each patty, then place a flour tortilla directly on top. Press down gently so the melted cheese bonds to the tortilla.
05 - After 1 to 2 minutes, carefully flip each unit so the tortilla lands directly on the skillet. Toast for about 1 minute until the tortilla is golden, slightly charred, and crispy.
06 - Transfer finished tacos to a warm plate and repeat the smashing, cheese-layering, and toasting process with the remaining beef, cheese, and tortillas. Add more oil to the skillet as needed between batches.
07 - In a small bowl, whisk together the mayonnaise, ketchup, and hot sauce until smooth and well combined. Adjust the heat level to your preference.
08 - Top each cheesy smash taco with sliced red onion, diced tomato, shredded lettuce, pickled jalapeños, a dollop of sour cream, and a drizzle of the prepared spicy sauce. Fold and serve immediately.