Philly Cheese Steak Quesadillas are what happens when two amazing dishes collide—juicy Philly cheesesteak meets crispy, cheesy quesadilla. It’s like a match made in food heaven. This recipe is packed with tender steak, caramelized onions, melty cheese, and crispy tortillas. And the best part? It’s super easy to make in just 30 minutes. Perfect for dinner, snacks, or even game-day eats.
Let’s get started!

Quick Recipe Stats
- Prep Time: 20 minutes
- Cook Time: 10 minutes
- Total Time: 30 minutes
- Servings: 4 quesadillas
- Skill Level: Beginner-friendly
Whether you’re cooking up a feast or just need a quick bite, this recipe is flexible:
- Cooking for a crowd? Double the ingredients.
- Need a smaller portion? Cut everything in half.
What You’ll Need
Here’s a quick breakdown of tools and ingredients:
Tools:
- Large skillet or griddle
- Sharp knife (or mandoline for thin slicing)
- Cutting board
- Spatula
Pro Tip: If you don’t have a griddle, a flat-bottomed pan works just fine. And for slicing quesadillas? A pizza cutter makes it super easy.

Ingredients:
- 2 tablespoons butter
- 2 tablespoons vegetable oil
- 1 onion, thinly sliced
- 1 green bell pepper, thinly sliced
- 1 1/4 teaspoons seasoned salt, divided
- 1/2 teaspoon black pepper, divided
- 2 sirloin or rib-eye steaks, thinly sliced
- 1 teaspoon steak seasoning
- 4 ounces mushrooms, sliced
- 4 large flour tortillas
- 8 slices provolone cheese
Want to shake things up? Try these swaps:
- Steak Alternatives: Use flank steak, leftover roast beef, or even portobello mushrooms for a vegetarian twist.
- Cheese Options: Provolone is classic, but mozzarella or cheddar works too. Want something bold? Try smoked Gouda.
- Tortillas: Whole wheat or gluten-free tortillas are great substitutes.
Step-by-Step Instructions

Step 1: Sauté the Veggies
Let’s start with the good stuff. Heat 1 tablespoon each of butter and oil in a skillet over medium-high heat. Toss in your onions and bell peppers with 3/4 teaspoon seasoned salt and 1/4 teaspoon pepper. Cook until the onions are golden and the peppers are slightly soft (about 6–8 minutes). Set them aside in a bowl.
What to look for: Lightly caramelized onions and tender, slightly crisp peppers.
Step 2: Sear the Steak
In the same skillet, add a touch more oil if needed. Season the steak strips with 1/2 teaspoon seasoned salt, 1 teaspoon steak seasoning, and 1/4 teaspoon pepper. Cook over medium-high heat for 1–2 minutes on each side. Want your steak well-done? Cook it a bit longer.
Quick Tip: Don’t overcrowd the pan—give the steak room to sear properly.
Step 3: Sauté the Mushrooms
Add 1 tablespoon of butter to the skillet and cook the mushrooms until they’re golden and fragrant (about 3–4 minutes). Combine them with the cooked steak and veggies.
Pro Tip: You’ll know the mushrooms are perfect when they smell earthy and caramelized.
Step 4: Assemble the Quesadillas
Time to bring it all together! Wipe the skillet clean, then heat 1 teaspoon each of butter and oil over medium heat. Place a tortilla in the skillet and layer one half with:
- 3 slices of provolone cheese
- A scoop of the steak-veggie-mushroom mixture
- Another 2 slices of cheese for maximum melt
Fold the tortilla in half to seal it up.

Step 5: Toast the Quesadillas
Cook the quesadilla until it’s golden and crispy on both sides, about 2–3 minutes per side. Repeat with the remaining tortillas and filling.
The goal? A crunchy outside and gooey, cheesy inside.
Make It Yours
Here’s how to tweak this recipe to fit your style:
- Spicy: Add red pepper flakes or sriracha to the filling for an extra kick.
- Gourmet: Swap provolone for Gruyère or drizzle truffle oil on the veggies for a fancy twist.
- Seasonal: Grill the veggies for a smoky summer touch.
Do you eat gluten-free or vegan? No problem:
- Use gluten-free tortillas.
- Replace the steak with tofu or tempeh, and use plant-based cheese.
Serving Suggestions
Serve your quesadillas hot, cut into wedges. They pair perfectly with:
- Pico de gallo or salsa verde
- Guacamole or sour cream
- Crispy sweet potato fries
Want to store leftovers? Here’s what to do:
- Fridge: Store in an airtight container for up to 3 days.
- Freezer: Assemble but don’t cook. Wrap tightly in foil and freeze. Thaw before cooking.

Reheating Tips
- Skillet: Reheat over medium-low for that crispy outside.
- Oven: Bake at 350°F for 10 minutes.
- Air Fryer: Perfect for crisping! Heat at 350°F for about 5 minutes.
And just like that, you’ve got a meal that’s cozy, cheesy, and full of flavor. These Philly Cheese Steak Quesadillas will be your new go-to. So grab your skillet, whip up a batch, and enjoy every last bite!
Happy cooking!
