Follow these simple steps to create your flavorful Quesadilla Burger:

1. Season the Beef: In a bowl, combine the ground beef with taco seasoning, salt, and pepper. Mix until evenly incorporated.
2. Shape the Patties: Form the seasoned beef into two equal-sized patties.
3. Cook the Patties: In a skillet over medium heat, add 1 tablespoon of olive oil. Cook the patties for 4-5 minutes on each side until they reach your desired doneness.
4. Prepare Tortillas: While the burgers are cooking, place another skillet over medium heat. Add the remaining tablespoon of olive oil.
5. Add Cheese: On one half of each tortilla, sprinkle a generous amount of shredded cheese.
6. Add Burger & Toppings: Once the burgers are cooked, place one burger on top of the cheese on each tortilla. Top with additional cheese, diced onions, and tomatoes.
7. Fold & Cook Tortillas: Fold the tortillas in half to encase the burger and toppings. Cook each folded quesadilla for 2-3 minutes on each side until golden brown and the cheese is melted.
8. Slice: Remove the quesadilla burgers from the skillet and let them cool slightly. Cut them into wedges for easy serving.
9. Top: Add any additional toppings like guacamole, salsa, or cilantro as desired.

Follow these steps, and you’re guaranteed a Quesadilla Burger that is sure to impress!