Cheesy Griddled Smashburger Quesadillas (Print Version)

Crispy quesadillas layered with smashburger patties, melted cheese, sweet onions, and zesty mayo-mustard sauce.

# 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, being careful not to overwork the meat.
02 - Preheat a flat griddle or heavy skillet over medium-high heat. Add 1 tablespoon vegetable oil and spread evenly to coat the surface.
03 - Add sliced onion to one side of the griddle and cook while stirring occasionally until golden and softened, approximately 5 minutes. Transfer to a plate.
04 - Divide beef mixture into 8 equal portions and roll each into a loose ball.
05 - Place 4 beef balls onto the hot griddle with even spacing. Immediately press each one flat with a heavy spatula or burger press to create thin patties approximately 4 inches in diameter.
06 - Cook patties undisturbed until edges are deeply browned and juices bubble to the surface, about 2 minutes. Season the top side with a pinch of salt and pepper.
07 - Flip patties and immediately top each with 1 slice of cheddar and 1 slice of American cheese. Cook until cheese melts and edges crisp, about 1 minute. Transfer to a plate.
08 - Wipe the griddle clean and reduce heat to medium. Brush both sides of each tortilla lightly with melted butter.
09 - Place a tortilla on the griddle. Layer 2 cheesy patties side by side, sprinkle with cooked onions, and drizzle with sauce prepared by whisking mayonnaise, Dijon mustard, and Worcestershire together. Top with a second tortilla.
10 - Cook until the bottom tortilla is golden and crisp, about 2 minutes, pressing gently with a spatula.
11 - Flip the quesadilla and cook the other side until golden, about 2 minutes more.
12 - Transfer quesadilla to a cutting board and let rest for 1 minute. Slice into wedges using a sharp knife or pizza cutter.
13 - Repeat the assembly and cooking process with remaining ingredients to make 2 large quesadillas total. Serve hot with pickles, cilantro, salsa, or sour cream as desired.

# Expert Tips:

01 -
  • It delivers the crispy-edged smashburger crust inside a golden, buttery quesadilla shell.
  • The double cheese layer—sharp cheddar and creamy American—melts into every bite without turning greasy.
  • You get dinner on the table in under an hour with ingredients you probably already have.
  • Leftovers reheat beautifully in a hot skillet, staying crisp and never soggy.
02 -
  • Do not skip the smash step—pressing the beef flat onto a screaming-hot griddle is what creates those crispy, lacy edges that make this recipe unforgettable.
  • Use medium heat for the quesadilla assembly or the tortillas will burn before the cheese inside has a chance to meld with the patties.
  • Let the finished quesadilla rest for a full minute before slicing or the cheese will ooze out and you will lose half the filling on the cutting board.
03 -
  • Press the beef balls onto parchment paper first if you are nervous about the smash—it helps you gauge thickness before committing to the hot griddle.
  • Add a slice of pepper jack instead of American if you want a spicy kick that does not overpower the beef.
  • Whisk the sauce ahead of time and keep it in a squeeze bottle for easy drizzling without making a mess.
  • Use a pizza cutter to slice the quesadillas—it glides through the layers without dragging the cheese out.
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