01 - Heat olive oil in a large skillet over medium-high heat. Add the sliced beef, salt, black pepper, and smoked paprika. Sauté for 2 minutes, tossing to coat evenly.
02 - Add brown sugar or honey, soy sauce, minced garlic, and sliced red onion to the skillet. Cook, stirring frequently, until the beef is browned and the onions have softened, about 4 to 5 minutes. Remove from heat and set aside.
03 - Wipe the skillet clean. Place one flour tortilla in the skillet over medium heat. Sprinkle half of the mozzarella and cheddar cheese blend evenly over one half of the tortilla.
04 - Distribute the beef mixture, sliced red bell pepper, and corn kernels over the cheese. Fold the tortilla in half to enclose the filling.
05 - Cook the quesadilla for 2 to 3 minutes per side, pressing gently with a spatula, until the exterior is golden brown and the cheese has fully melted.
06 - Remove the finished quesadilla and repeat the assembly and cooking process with the remaining tortillas and fillings.
07 - Cut each quesadilla into wedges and serve warm alongside sour cream, fresh cilantro, and lime wedges if desired.