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Steak and Cheese Quesadillas

Succulent cubes of skirt steak sautéed with sweet onions, nestled between layers of molten mozzarella and Monterey Jack, then tucked into golden-brown flour tortillas. An excellent way to revive leftover steak for a swift lunch or satisfying dinner.
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Ingredients

  • 4 burrito-size flour tortillas
  • 1 Tbsp vegetable oil
  • 1 lb skirt steak cut into 1-inch cubes
  • 1 medium onion finely diced
  • 1 tsp salt
  • 1 tsp freshly ground black pepper
  • ½ tsp onion powder
  • 2 cups shredded mozzarella cheese
  • 1 ½ cups shredded Monterey Jack cheese

Instructions

  • Warm the vegetable oil in a large skillet over medium heat, ensuring an even sheen across the surface.
  • Distribute the steak and diced onion in a single layer, then season with salt, pepper and onion powder; sauté 4–8 minutes per side until the meat browns lightly and cooks through.
  • Transfer the skillet from the heat and allow the steak to rest for 5 minutes while you prepare the griddle or a cast-iron skillet over medium-high heat.
  • Lay each tortilla on the hot surface; scatter a modest portion of both cheeses over half of each tortilla, spoon the steak-onion mixture on top, and cover with another sprinkle of cheese before folding into a crescent.
  • Toast each quesadilla 1–2 minutes until the underside turns golden, flip carefully, and brown the second side for another 1–2 minutes, watching closely to prevent scorching.
  • Slide the finished quesadillas onto a cutting board, slice into wedges, and serve immediately while the cheese is at its most luscious.
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Notes

Cooled leftovers keep well in an airtight container in the refrigerator for up to five days.
Flank steak may be substituted for skirt steak without altering technique or timing.