Fajita Quesadillas Recipe

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Fajita quesadillas came together one night when facing the common dilemma of not knowing what to cook, using leftover steak as creative inspiration for improvised meals. This practical recipe demonstrates how leftovers can become something completely new and exciting through creative thinking and simple techniques. The fajita flavors work perfectly in quesadilla format while leftover steak provides premium protein that elevates these beyond ordinary quesadilla preparations.

Close up view of a sliced fajita quesadilla with guacamole on top on a plate

I came up with this one night when I didn’t know what to cook. I had leftover steak in the fridge, so I decided to get creative. These came out wonderful! The measurements are approximations, so feel free to change them according to your tastes. Serve with salsa, guacamole, and sour cream.

Prep Time:
10 mins
Cook Time:
15 mins
Total Time:
25 mins
Servings:
4
Yield:
4 servings
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Ingredients

1/2x
1x
2x

Original recipe (1X) yields 4 servings

  • 2 tablespoons vegetable oil, divided

  • ½ onion, sliced

  • ½ green bell pepper, sliced

  • salt to taste

  • 4 flour tortillas

  • ½ pound cooked steak, cut into 1/4-inch thick pieces

  • 1 cup shredded Mexican cheese blend

Directions

  1. Heat 2 teaspoons oil in a 10-inch skillet over medium heat; cook and stir onion and green bell pepper in the hot oil until onions are softened, 5 to 10 minutes. Season mixture with salt and transfer to a bowl.

  2. Brush 1 side of each tortilla with remaining oil. Place 1 tortilla, oil-side down, in the same skillet; sprinkle with 1/2 the steak, 1/2 the onion mixture, and 1/2 the Mexican cheese mixture. Place a second tortilla, oil-side up, onto cheese layer, pressing down with a spatula to seal.

  3. Cook quesadilla over medium heat until cheese melts and tortillas are browned, 3 to 4 minutes per side. Remove quesadilla from skillet and cut into wedges. Repeat with remaining ingredients for second quesadilla.

Nutrition Facts (per serving)

552 Calories
31g Fat
40g Carbs
28g Protein
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Nutrition Facts
Servings Per Recipe 4
Calories 552
% Daily Value *
Total Fat 31g40%
Saturated Fat 13g65%
Cholesterol 79mg26%
Sodium 762mg33%
Total Carbohydrate 40g15%
Dietary Fiber 3g10%
Total Sugars 2g
Protein 28g56%
Vitamin C 13mg14%
Calcium 313mg24%
Iron 3mg14%
Potassium 185mg4%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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John Davis
John Davis

Hi, I’m John Davis!
Food has always been my favorite way to connect with people, and that’s why I started blogging about it. I love sharing quick, creative recipes that prove cooking at home can be just as exciting as eating out. Whether it’s a speedy weeknight dinner or a fun snack, I enjoy keeping things simple, flavorful, and approachable for everyone. When I’m not experimenting in the kitchen, I’m usually exploring new cuisines or hunting for fresh inspiration at local markets.

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