Roasted asparagus and red onion quesadillas are a delightful twist on a classic favorite. The combination of tender roasted asparagus and sweet red onion with melted cheese creates a flavorful and satisfying meal. Perfect for a quick weeknight dinner or a casual get-together, these quesadillas are sure to impress.
While most of the ingredients for this recipe are common pantry staples, you may need to pick up a fresh bunch of asparagus and a red onion if they are not already in your kitchen. Ensure you have flour tortillas and your favorite shredded cheese on hand. These ingredients are typically easy to find in the produce and dairy sections of your local supermarket.

Ingredients For Roasted Asparagus And Red Onion Quesadillas
Asparagus: Fresh green stalks that are tender and slightly sweet when roasted.
Red onion: Adds a sweet and slightly sharp flavor when roasted.
Olive oil: Used to coat the vegetables for roasting, adding a rich flavor.
Flour tortillas: Soft and pliable, perfect for making quesadillas.
Cheddar cheese: A sharp, tangy cheese that melts beautifully. You can use your preferred shredded cheese.
Salt: Enhances the natural flavors of the ingredients.
Pepper: Adds a mild heat and depth of flavor.
Technique Tip for Making Quesadillas
When roasting the asparagus and red onion, ensure they are spread out in a single layer on the baking sheet. This allows for even cooking and prevents steaming, which can make the vegetables soggy. For an extra layer of flavor, consider adding a sprinkle of garlic powder or a dash of balsamic vinegar before roasting.
Suggested Side Dishes
Alternative Ingredients
trimmed asparagus - Substitute with broccoli florets: Broccoli has a similar texture and can be roasted to achieve a comparable flavor profile.
sliced red onion - Substitute with yellow onion: Yellow onions offer a slightly sweeter taste when caramelized, which can complement the other ingredients well.
olive oil - Substitute with avocado oil: Avocado oil has a high smoke point and a neutral flavor, making it a good alternative for roasting vegetables.
flour tortillas - Substitute with corn tortillas: Corn tortillas provide a different texture and flavor that can add a unique twist to the quesadillas.
cheddar or your choice shredded cheese - Substitute with monterey jack cheese: Monterey Jack melts well and has a mild flavor that pairs nicely with the other ingredients.
salt - Substitute with soy sauce: Soy sauce can add a savory umami flavor, but use it sparingly to avoid overpowering the dish.
pepper - Substitute with cayenne pepper: Cayenne pepper adds a bit of heat and can enhance the overall flavor profile of the quesadillas.
Other Alternative Recipes Similar to This One
How To Store / Freeze Your Quesadillas
Allow the quesadillas to cool completely before storing. This prevents condensation, which can make them soggy.
Wrap each quesadilla individually in plastic wrap or aluminum foil. This helps maintain their shape and prevents them from sticking together.
Place the wrapped quesadillas in an airtight container or zip-top bag. Label with the date to keep track of freshness.
Store in the refrigerator for up to 3 days. For longer storage, place them in the freezer.
To freeze, lay the wrapped quesadillas flat on a baking sheet and freeze until solid. Once frozen, transfer them to a freezer-safe bag or container.
When ready to reheat, unwrap the quesadillas and place them on a baking sheet. Reheat in a preheated oven at 375°F (190°C) for about 10-15 minutes, or until heated through and the cheese is melted.
Alternatively, reheat in a skillet over medium heat. Cook each side for 2-3 minutes until the tortilla is crispy and the filling is hot.
For a quicker option, use a microwave. Place the quesadilla on a microwave-safe plate and cover with a damp paper towel to retain moisture. Microwave on high for 1-2 minutes, checking halfway through.
Serve immediately after reheating for the best texture and flavor.
How To Reheat Leftovers
Oven Method: Preheat your oven to 350°F (175°C). Place the quesadillas on a baking sheet and cover them with aluminum foil to prevent them from drying out. Heat for about 10-15 minutes or until the cheese is melted and the tortillas are warm and slightly crispy.
Skillet Method: Heat a non-stick skillet over medium heat. Place the quesadillas in the skillet and cover with a lid to help retain moisture. Cook for about 2-3 minutes on each side until the cheese is melted and the tortillas are crispy.
Microwave Method: Place the quesadillas on a microwave-safe plate. Cover with a damp paper towel to keep them from drying out. Microwave on high for about 1-2 minutes, checking halfway through to ensure even heating. Note that this method may result in softer tortillas.
Toaster Oven Method: Preheat your toaster oven to 350°F (175°C). Place the quesadillas on the toaster oven rack or a baking sheet. Heat for about 5-7 minutes or until the cheese is melted and the tortillas are crispy.
Air Fryer Method: Preheat your air fryer to 350°F (175°C). Place the quesadillas in the air fryer basket in a single layer. Heat for about 3-5 minutes, checking halfway through to ensure they are heating evenly and not burning.
Best Tools for Making Quesadillas
Oven: Used to roast the asparagus and red onion to bring out their natural flavors and achieve a tender texture.
Baking sheet: Provides a flat surface to spread the asparagus and red onion for even roasting.
Skillet: Essential for cooking the quesadillas to a golden brown and melting the cheese.
Spatula: Helps in flipping the quesadillas without breaking them apart.
Knife: Used to trim the asparagus and slice the red onion.
Cutting board: Provides a safe surface for cutting the vegetables.
Measuring spoons: Ensures accurate measurement of olive oil, salt, and pepper.
Tongs: Useful for tossing the vegetables with olive oil, salt, and pepper, and for handling the roasted vegetables.
Cheese grater: If you're shredding your own cheese, this tool is necessary.
Serving platter: Ideal for presenting the finished quesadillas.
Knife: Needed again to cut the quesadillas into wedges for serving.
How to Save Time on Making Quesadillas
Prepare the filling: Roast the asparagus and red onion in advance and store them in the fridge. This way, you can quickly assemble the quesadillas when needed.
Use pre-shredded cheese: Save time by using pre-shredded cheese instead of shredding it yourself.
Batch cooking: Cook multiple quesadillas at once on a large griddle or in the oven to save time on individual cooking.
Preheat the skillet: Make sure your skillet is hot before adding the tortillas to speed up the cooking process.
Cut uniformly: Slice the asparagus and red onion into uniform pieces to ensure even roasting and quicker cooking.

Roasted Asparagus And Red Onion Quesadillas
Ingredients
Main Ingredients
- 1 bunch Asparagus trimmed
- 1 Red Onion sliced
- 2 tablespoon Olive Oil
- 8 Flour Tortillas
- 2 cups Shredded Cheese cheddar or your choice
- to taste Salt and Pepper
Instructions
- Preheat oven to 400°F (200°C).
- Toss asparagus and red onion with olive oil, salt, and pepper. Spread on a baking sheet.
- Roast in the oven for 15-20 minutes until tender.
- Heat a skillet over medium heat. Place a tortilla in the skillet, sprinkle with cheese, add roasted vegetables, and top with another tortilla.
- Cook until the bottom tortilla is golden brown, then flip and cook the other side until golden and the cheese is melted.
- Repeat with remaining tortillas and filling. Cut into wedges and serve.
Nutritional Value
Keywords
Suggested Appetizers and Desserts for This Recipe
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