# What You'll Need:
→ Smashburger Patties
01 - 1 pound ground beef (80/20 blend)
02 - 1 teaspoon kosher salt
03 - 0.5 teaspoon freshly ground black pepper
04 - 1 teaspoon garlic powder
→ Quesadillas
05 - 4 large flour tortillas (8-10 inches each)
06 - 8 slices sharp cheddar cheese
07 - 4 slices American cheese
08 - 1 small yellow onion, thinly sliced
09 - 2 tablespoons vegetable oil, divided
10 - 2 tablespoons unsalted butter, melted
→ Sauce
11 - 2 tablespoons mayonnaise
12 - 1 tablespoon Dijon mustard
13 - 1 teaspoon Worcestershire sauce
→ Optional Garnishes
14 - Sliced pickles
15 - Chopped fresh cilantro
16 - Salsa
17 - Sour cream
# How To Make It:
01 - In a medium bowl, gently combine ground beef with salt, pepper, and garlic powder until just incorporated, taking care not to overwork the meat.
02 - Preheat a flat griddle or heavy skillet over medium-high heat. Add 1 tablespoon vegetable oil and coat the surface evenly. Place sliced onion on one side and cook, stirring occasionally, until golden and softened, approximately 5 minutes. Transfer to a plate.
03 - Divide beef mixture into 8 equal portions and roll each into a loose ball. Place 4 beef balls onto the hot griddle, spacing evenly apart.
04 - Immediately press each beef ball flat with a heavy spatula or burger press to form thin patties approximately 4 inches across. Cook undisturbed until edges are deeply browned and juices bubble up, about 2 minutes. Season tops with salt and pepper.
05 - Flip patties and immediately top each with 1 slice of cheddar cheese and 1 slice of American cheese. Cook until cheese is melted and edges are crisp, approximately 1 minute. Transfer to a plate.
06 - While patties cook, whisk together mayonnaise, Dijon mustard, and Worcestershire sauce in a small bowl until well combined.
07 - Wipe the griddle clean and reduce heat to medium. Brush both sides of each tortilla lightly with melted butter.
08 - Place a buttered tortilla on the griddle. Layer 2 cheesy patties side by side in the center, sprinkle with cooked onions, and drizzle with prepared sauce. Top with a second buttered tortilla.
09 - Cook until the bottom tortilla is golden and crisp, approximately 2 minutes, pressing gently with a spatula to ensure even browning.
10 - Flip the quesadilla carefully and cook the other side until golden and crisp, approximately 2 minutes more.
11 - Transfer quesadilla to a cutting board and let rest for 1 minute. Using a sharp knife or pizza cutter, slice into wedges.
12 - Repeat assembly and cooking process with remaining ingredients to prepare the second quesadilla. Serve hot with pickles, cilantro, salsa, or sour cream as desired.
