Begin by heating a skillet over medium heat. Add in the ground beef and cook until it’s browned and fully cooked. Toss in the chopped onion and minced garlic, and cook until they’re soft and fragrant. Next, season the mixture with salt, pepper, paprika, and cumin. Stir everything together and set aside to cool slightly.
Lay out a tortilla on a clean surface. Sprinkle a generous amount of shredded cheddar cheese across the tortilla. Add a layer of the beef mixture, followed by diced tomatoes and chopped pickles. Top it with another tortilla to complete the sandwich.
Heat a large skillet or griddle over medium heat. Carefully place the assembled quesadilla in the pan. Cook for about 3–4 minutes per side, pressing gently with a spatula, until the tortilla is golden brown and the cheese is melted. Once done, transfer it to a cutting board and allow it to cool slightly before slicing into wedges.
Serve your warm, crispy quesadilla slices with ketchup, mustard, or your favorite dipping sauces. Enjoy every bite!