01 -
Preheat your Blackstone grill to medium-high heat, around 400°F. Spread vegetable oil evenly across the surface to create a non-stick base.
02 -
Place diced steak and onions on the grill in an even layer. Season with onion powder, salt, and black pepper. Sauté for 4-8 minutes per side until browned and cooked through with crispy edges.
03 -
Push cooked steak and onion mixture to one side of the grill. Reduce the temperature to medium heat to assemble and cook the quesadillas.
04 -
Place tortillas on the grill. Layer each tortilla with mozzarella and Monterey Jack cheeses, add the steak-onion mixture, and top with more cheese.
05 -
Fold each tortilla in half to create a half-moon shape. Cook for 1-2 minutes until the bottom is golden brown.
06 -
Flip each quesadilla using a spatula and cook another 1-2 minutes until the other side is golden brown. Monitor closely to avoid overcooking.
07 -
Remove quesadillas to a cutting board, slice into wedges, and serve hot while crispy on the outside with melty cheese and steak inside.