
Blackstone Steak Cheese Quesadillas
These steak and cheese quesadillas on the Blackstone became my answer to those nights when I want something that feels special but doesn't require a ton of prep work or complicated techniques. There's something genuinely magical about cooking everything on that flat top surface - the steak gets perfectly caramelized with beautiful brown edges, the onions turn sweet and golden, and the tortillas crisp up beautifully while all that cheese melts into gooey perfection. What started as a creative way to use up leftover steak has turned into one of our most requested weeknight dinners because it tastes like expensive restaurant food but comes together in less than thirty minutes on the griddle.
My husband discovered this winning combination last summer when he was experimenting with the Blackstone we got for his birthday present. He made these for lunch one Saturday, and they were so incredibly good that we ended up having them again for dinner that same night. Now whenever friends come over and see the Blackstone heating up, they automatically ask if we're making these famous quesadillas.
Essential Griddle Ingredients
- Skirt steak: Cuts into perfect bite-sized pieces and cooks quickly on the flat top while developing beautiful caramelization
- Mozzarella and Monterey Jack cheeses: Create the perfect creamy, stretchy combination that melts beautifully and holds everything together
- Burrito-size flour tortillas: Large enough to hold plenty of filling without falling apart during cooking and flipping
- Sweet yellow onion: Adds natural sweetness and appealing texture that complements the savory steak perfectly
- Onion powder, salt, and pepper: Keep the seasonings simple but effective for letting the steak and cheese flavors shine
- Vegetable oil: For coating the griddle surface and preventing sticking while promoting even browning
- Optional garnishes: Fresh salsa, guacamole, and sour cream for serving alongside the finished quesadillas
Complete Blackstone Process
- Preparing Your Griddle Foundation
- Get your Blackstone heating over medium-high heat until it reaches approximately 400°F, ensuring even heat distribution across the entire cooking surface. Spread vegetable oil generously across the cooking area to prevent sticking and help everything achieve that beautiful golden color. While the griddle heats up, dice your steak into uniform bite-sized pieces and slice your onion evenly so everything cooks at the same rate.
- Achieving Perfect Steak Caramelization
- Place diced steak and sliced onions on the hot grill in an even layer, giving everything adequate room to brown properly instead of steaming in crowded conditions. Season generously with onion powder, salt, and pepper, then let it cook undisturbed for four to eight minutes per side until the steak develops beautiful caramelized edges and cooks through completely. The onions should become soft, golden, and sweet by the time the steak reaches perfect doneness.
- Strategic Quesadilla Assembly
- Push all the cooked steak and onions to one side of the Blackstone and reduce heat to medium temperature for controlled cooking. Place tortillas on the clean portion of the grill and begin building your quesadillas systematically. Sprinkle some of each cheese on half of each tortilla, then layer on the warm steak and onions, and top with additional cheese for maximum melty goodness.
- Mastering The Perfect Flip
- Carefully fold each tortilla in half to create that classic half-moon quesadilla shape, pressing gently to help everything adhere together. Cook for one to two minutes until the bottom develops a golden brown, crispy exterior, then flip confidently and cook the other side for another one to two minutes. Watch them closely because the transition from perfect to burnt happens quickly on that hot surface.
- Creating Final Golden Perfection
- Continue cooking until both sides achieve beautiful golden brown color and the cheese melts completely throughout, creating that irresistible stretchy texture. The tortillas should sound crispy when tapped gently with a spatula, indicating proper doneness and optimal texture contrast with the melted interior.
- Proper Finishing and Serving
- Transfer the completed quesadillas to a clean cutting board and let them cool for just one minute so the molten cheese sets up slightly for cleaner slicing. Cut into wedges using a sharp knife or pizza cutter, then serve immediately while the cheese is still perfectly melted and the tortillas maintain their crispy texture.

Perfect Serving Ideas
These quesadillas are fantastic on their own, but I love serving them with fresh salsa, creamy guacamole, and cool sour cream for dipping that adds flavor variety. A simple side salad with bright lime vinaigrette cuts through all that rich cheese nicely while adding fresh vegetables. Mexican rice or seasoned black beans make excellent sides if you want to transform this into a more substantial meal. Cold beer or fresh limeade pair perfectly with these bold flavors.
Creative Customization Options
You can easily customize these quesadillas based on what ingredients you have available or family preferences. Colorful bell peppers work beautifully with the onions, or try adding fresh jalapeños for appealing heat that complements the cheese. Different cheese combinations like pepper jack and sharp cheddar completely change the flavor profile while maintaining that essential melted texture. Sometimes I add a sprinkle of cumin or chili powder to the steak for more authentic southwestern flavor depth.
Smart Storage Solutions
These quesadillas keep well in the refrigerator for up to five days, though they're definitely at their absolute best when served fresh and hot. To reheat properly, return them to the Blackstone or use a dry skillet over medium heat until they're warmed through and regain their crispy texture. Avoid the microwave as it makes the tortillas soggy and destroys that appealing textural contrast between crispy exterior and melted interior.

These incredible steak and cheese quesadillas have become our absolute go-to Blackstone recipe because they perfectly showcase everything that's wonderful about cooking on a flat top griddle. The even heat distribution gives you consistent browning, the large cooking surface lets you prepare everything simultaneously, and cleanup is minimal since everything happens on one surface. They taste like something you'd order at an upscale Mexican restaurant but are simple enough for any weeknight when you want dinner to feel genuinely special and memorable.
Recipe FAQs
- → Can I make these without a Blackstone griddle?
- Yes! You can use a large skillet or regular grill pan. Just cook the steak first, then make the quesadillas in the same pan over medium heat.
- → What's the best cut of steak for quesadillas?
- Skirt steak and flank steak work best because they're flavorful, cook quickly, and are easy to dice. Sirloin is another good option.
- → How do I know when the quesadillas are done?
- They should be golden brown and crispy on both sides, with the cheese fully melted inside. You'll see it starting to ooze slightly at the edges.
- → Can I prep these ahead of time?
- You can cook the steak and onions ahead, but assemble and cook the quesadillas fresh for the best crispy texture.
- → What temperature should I cook these at?
- Start at medium-high (400°F) for the steak, then reduce to medium heat for the quesadillas to prevent burning while the cheese melts.
- → What should I serve with these quesadillas?
- Salsa, guacamole, sour cream, or pico de gallo all make great dipping sauces. A simple side salad rounds out the meal nicely.