01 -
Pour a little oil over your Blackstone, then crank the heat up to medium-high—around 200°C should do it.
02 -
Toss the steak pieces and onions onto the hot grill together. Sprinkle on salt, pepper, and onion powder. Stir them about. Let everything cook until the beef's browned and cooked through—give it 4 to 8 minutes, flipping now and then.
03 -
Push the steak and onions aside to free up space, then notch the grill down to medium heat.
04 -
Drop your tortillas onto the open spot. Top each with a good layer of mozzarella and Monterey Jack, spoon over the steak and onions, then hit it with a bit more cheese.
05 -
Fold each tortilla over so it's shaped like a half circle. Leave them for a couple minutes or so until the bottom turns nice and golden.
06 -
Carefully turn the quesadillas over. Let them go for another couple of minutes so the other side crisps up too—keep a close eye so they don't burn.
07 -
Slide the quesadillas onto your cutting board, slice them up into wedges, and enjoy them hot and crunchy right away.