Creating Smashburger Quesadillas is simple when you follow these step-by-step instructions:

1. Cook the Beef: In a skillet over medium heat, add the ground beef. Cook until browned, about 5-7 minutes. Drain excess fat.

2. Add Seasoning: Stir in taco seasoning and continue to cook for another 2-3 minutes. Remove from heat.

3. Prepare Tortillas: Heat a separate non-stick skillet over medium heat. Add a touch of cooking oil to coat the pan.

4. Layer Ingredients: Place one tortilla in the skillet. Sprinkle a generous amount of cheddar and Monterey Jack cheese on half of the tortilla.

5. Add Beef and Toppings: On top of the cheese, evenly distribute the cooked beef, chopped onions, diced tomatoes, and cilantro.

6. Fold: Carefully fold the tortilla in half, covering the filling.

7. Cook Quesadilla: Cook for 3-4 minutes on one side until golden brown and crispy. Flip and cook for another 3-4 minutes on the other side.

8. Repeat: Repeat the process with the remaining tortillas until all the quesadillas are cooked.

9. Slice: Once cooked, remove from heat and allow them to cool slightly. Cut into wedges.

10. Serve: Place on a serving platter and enjoy with salsa, guacamole, and sour cream on the side.

Each step in this recipe is designed for success, ensuring delicious and authentically flavored Smashburger Quesadillas that everyone will love.