Tex-Mex Beef Quesadillas with Peppers and Cheese

Quick Recipe Version (TL;DR)

• Yield: 4 servings (4 large quesadillas)
• Prep Time: 20 minutes
• Cook Time: 20 minutes
• Total Time: 40 minutes

Quick Ingredients

• 1 lb (450 g) ground beef
• 2 tbsp oil, divided
• 2 tsp chili powder, 1 tsp cumin, 1/2 tsp smoked paprika
• 1/2 tsp each garlic powder, onion powder, dried oregano
• 3/4 tsp salt, 1/4 tsp black pepper
• 2 tbsp tomato paste + 1/4 cup water
• 1 medium onion, thinly sliced
• 2 bell peppers (red and green), thinly sliced
• 1 jalapeño, sliced (optional)
• 8 medium (8-inch) flour tortillas
• 3 cups (about 12 oz / 340 g) shredded Mexican blend or cheddar/Jack cheese
• 2 tbsp butter (or more oil) for the pan
• 2 ripe avocados + lime, cilantro, red onion for quick guacamole
• Salsa and sour cream for serving

Do This

• 1. Prep ingredients: slice peppers and onions, grate cheese, and mash avocados with lime, cilantro, red onion, salt, and garlic for guacamole.
• 2. Brown ground beef in 1 tbsp oil over medium-high heat; drain excess fat if needed.
• 3. Stir in spices, tomato paste, and water; simmer 2 to 3 minutes until thick and well coated. Set aside.
• 4. In the same pan, sauté onion, peppers, and jalapeño in 1 tbsp oil with a pinch of salt until tender and lightly browned, about 6 to 8 minutes.
• 5. Assemble quesadillas: on half of each tortilla layer cheese, beef, peppers/onions, more cheese; fold over.
• 6. Cook folded quesadillas in a lightly buttered skillet over medium heat 2 to 3 minutes per side until tortillas are crisp and cheese is melted.
• 7. Slice into wedges and serve hot with salsa, guacamole, sour cream, cilantro, and lime wedges.

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Why You’ll Love This Recipe

• Classic Tex-Mex flavors: seasoned beef, melty cheese, and sautéed peppers in every bite.
• Family-friendly and customizable: adjust the heat, swap fillings, or use what you have on hand.
• Weeknight-fast: ready in about 40 minutes, and most steps are simple skillet cooking.
• Great for parties: easy to scale up and slice into shareable wedges.

Grocery List

• Produce: 1 medium yellow onion, 2 bell peppers (red and green), 1 jalapeño (optional), 2 ripe avocados, 1 lime, fresh cilantro, red onion (small piece), 1 small garlic clove, optional roma tomato, extra limes for serving
• Dairy: 3 cups shredded Mexican blend or cheddar/Monterey Jack cheese, 1/2 cup sour cream, 2 tbsp butter
• Pantry: 1 lb ground beef, 8 medium flour tortillas, chili powder, ground cumin, smoked paprika, garlic powder, onion powder, dried oregano, fine salt, black pepper, olive oil or vegetable oil, 2 tbsp tomato paste, 1/4 cup water, 1 cup salsa

Full Ingredients

For the Seasoned Beef Filling

• 1 tbsp olive oil or vegetable oil
• 1 lb (450 g) ground beef (80% to 90% lean)
• 2 tsp chili powder
• 1 tsp ground cumin
• 1/2 tsp smoked paprika
• 1/2 tsp garlic powder
• 1/2 tsp onion powder
• 1/2 tsp dried oregano
• 3/4 tsp fine sea salt (plus more to taste)
• 1/4 tsp freshly ground black pepper
• 2 tbsp tomato paste
• 1/4 cup water

For the Sautéed Peppers and Onions

• 1 tbsp olive oil or vegetable oil
• 1 medium yellow onion, thinly sliced
• 1 red bell pepper, cored and thinly sliced
• 1 green bell pepper, cored and thinly sliced
• 1 jalapeño, seeded and thinly sliced (optional, for heat)
• 1/4 tsp fine sea salt

For the Quesadillas

• 8 medium (8-inch) flour tortillas
• 3 cups (about 12 oz / 340 g) shredded Mexican blend cheese, or a mix of cheddar and Monterey Jack
• 2 tbsp butter, softened (or additional oil) for cooking the quesadillas

For the Guacamole

• 2 ripe avocados
• 2 tbsp finely diced red onion
• 2 tbsp chopped fresh cilantro
• 1 small garlic clove, finely minced
• Juice of 1 lime (about 2 tbsp)
• 1/4 tsp fine sea salt, plus more to taste
• 1 small roma tomato, seeded and finely diced (optional)

For Serving

• 1 cup salsa (store-bought or homemade)
• 1/2 cup sour cream
• Fresh cilantro, chopped, for garnish
• Lime wedges

Step-by-Step Instructions

Step 1: Prep and Preheat

Thinly slice the onion, bell peppers, and jalapeño (if using). Grate the cheese if it is not pre-shredded. Roughly chop some cilantro for garnish and for the guacamole. Cut the lime in half.

If you want to keep cooked quesadillas warm while you work in batches, preheat your oven to 200°F (95°C). Line a baking sheet with parchment paper and place it in the oven.

Step 2: Cook the Seasoned Ground Beef

Heat 1 tbsp oil in a large skillet over medium-high heat. Add the ground beef and cook, breaking it up with a spoon, for 5 to 7 minutes until browned and no pink remains. If there is a lot of rendered fat, carefully spoon off most of it, leaving about 1 to 2 tsp in the pan.

Sprinkle in the chili powder, cumin, smoked paprika, garlic powder, onion powder, dried oregano, salt, and black pepper. Stir to coat the beef evenly in the spices. Add the tomato paste and water, then stir until the paste dissolves and coats the meat. Let the mixture simmer for 2 to 3 minutes, stirring occasionally, until thickened and saucy. Taste and adjust seasoning with a pinch more salt if needed. Transfer the beef to a bowl and set aside.

Step 3: Sauté the Peppers and Onions

In the same skillet (no need to wash it), add 1 tbsp oil and return to medium-high heat. Add the sliced onion, red and green bell peppers, and jalapeño if using. Sprinkle with 1/4 tsp salt.

Cook, stirring frequently, for 6 to 8 minutes, until the vegetables are softened and have some golden-brown spots, but still retain a bit of bite. Adjust the heat as needed to prevent burning. When done, transfer the peppers and onions to a separate bowl. Wipe out the skillet lightly with a paper towel if there are any very dark bits, leaving a thin film of oil behind.

Step 4: Make the Simple Guacamole and Prep Toppings

While the skillet cools slightly, make the guacamole. In a medium bowl, scoop in the flesh of the avocados. Add the diced red onion, chopped cilantro, minced garlic, lime juice, and 1/4 tsp salt. Mash with a fork until mostly smooth but still a little chunky. Stir in the optional diced tomato if using. Taste and add more salt or lime juice as desired. Set aside.

Arrange your salsa, sour cream, extra cilantro, and lime wedges so they are ready for serving. Having toppings ready makes it easy to serve the quesadillas hot from the skillet.

Step 5: Assemble the Quesadillas

Place the tortillas on a work surface. For each quesadilla, sprinkle about 1/4 cup shredded cheese over half of a tortilla, leaving a small border around the edge. Spoon a generous 1/4 cup of the seasoned beef over the cheese. Top with a layer of sautéed peppers and onions (about 1/4 cup), then sprinkle another 1/4 cup cheese over the top. Fold the empty half of the tortilla over the filling to form a half-moon shape and gently press down.

Repeat with the remaining tortillas and filling. You should have 8 folded quesadillas ready to cook.

Step 6: Cook Until Crisp and Melty

Heat the large skillet over medium heat. Add a thin layer of butter (about 1/2 tbsp) or oil, swirling to coat. Place 2 to 3 folded quesadillas in the skillet, depending on size, without overcrowding.

Cook for 2 to 3 minutes on the first side, pressing lightly with a spatula, until the bottom is golden brown and crisp. Carefully flip and cook the second side for another 2 to 3 minutes, until the tortilla is crisp and the cheese inside is fully melted. Adjust the heat as needed so the tortillas brown without burning.

Transfer cooked quesadillas to the warm oven, placing them on the prepared baking sheet, while you cook the remaining batches, adding a bit more butter or oil to the skillet as needed.

Step 7: Slice and Serve with Salsa and Guacamole

Remove the quesadillas from the oven. Let them rest for 1 to 2 minutes so the cheese settles slightly, which makes slicing easier. Using a sharp knife or pizza cutter, slice each quesadilla into 3 or 4 wedges.

Arrange the wedges on a platter or individual plates. Garnish with chopped cilantro and serve immediately with generous spoonfuls of guacamole, salsa, sour cream, and lime wedges on the side. Enjoy the quesadillas while they are hot, crisp, and melty.

Pro Tips

• Use freshly shredded cheese. Pre-shredded cheese often contains anti-caking agents that prevent ultra-smooth melting. Shredding a block of cheese gives you the best gooey, stretchy texture.
• Do not overfill the tortillas. It is tempting to stuff them, but too much filling makes flipping difficult and can cause everything to spill out. Aim for even, modest layers of beef, veggies, and cheese.
• Medium heat is your friend. Cooking the quesadillas over medium, not high, heat lets the cheese melt fully while the tortillas crisp without burning.
• Warm in the oven if serving a crowd. The low oven at 200°F (95°C) keeps finished quesadillas hot and crisp while you cook the rest.
• Adjust the spice level. For milder quesadillas, skip the jalapeño and reduce the chili powder; for spicier ones, keep the jalapeño seeds or add a pinch of cayenne.

Variations

• Chicken Tex-Mex Quesadillas: Substitute the ground beef with 1 lb of finely chopped cooked chicken (rotisserie works well). Sauté the chicken briefly with the same spices and tomato paste until coated and heated through.
• Veggie-Packed Version: Add sliced mushrooms, corn kernels, or black beans to the pepper and onion mixture. Season them with a pinch of chili powder and cumin for extra flavor.
• Cheesy Deluxe: Use a mix of sharp cheddar, Monterey Jack, and a little pepper Jack for extra flavor and a bit more heat. Sprinkle a tiny pinch of salt over the cheese layer if using very mild cheese.

Storage & Make-Ahead

Leftover cooked quesadillas can be cooled completely, then stored in an airtight container in the refrigerator for up to 3 days. Reheat in a dry skillet over medium heat for 2 to 3 minutes per side or in a 375°F (190°C) oven for about 8 to 10 minutes until hot and crisp. Guacamole is best made fresh, but you can press plastic wrap directly onto the surface to reduce browning and refrigerate for up to 1 day. The seasoned beef and sautéed peppers/onions can be prepared up to 2 days ahead and stored separately in the refrigerator; simply reheat before assembling and cooking the quesadillas.

Nutrition (per serving)

Approximate values per serving (1 large quesadilla with toppings, out of 4 servings): about 700 calories, 40 g protein, 45 g fat, 40 g carbohydrates, 4 g fiber, and 1,200 mg sodium. Actual nutrition will vary based on specific brands of tortillas, cheese, salsa, and how much guacamole and sour cream you use.