01 - Divide the ground beef into 8 equal portions and roll into balls. Season each generously with smoked paprika, garlic powder, salt, and black pepper.
02 - Heat a large skillet or griddle over medium-high heat and coat lightly with vegetable oil.
03 - Place 2 seasoned beef balls onto the hot surface. Press each firmly with a sturdy spatula to flatten into thin, even patties.
04 - Cook the patties for 2 minutes until the edges turn deeply crispy. Lay a slice of cheddar cheese on each patty, then place a flour tortilla on top, pressing gently so the cheese bonds to the tortilla.
05 - After 1 to 2 minutes, carefully flip each patty so the tortilla lands directly on the skillet. Toast for about 1 minute until the tortilla turns golden and crisp.
06 - Transfer finished tacos to a warm plate and repeat the process with the remaining beef, cheese, and tortillas, adding more oil to the skillet as needed.
07 - In a small mixing bowl, stir together the mayonnaise, ketchup, and hot sauce until smooth and well combined.
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 spicy sauce. Fold and serve immediately.