Creating Smashburger Quesadillas is straightforward. Just follow these steps:

1. Cook the Ground Beef: Heat a large skillet over medium-high heat. Add the ground beef, seasoned with onion powder, garlic powder, smoked paprika, salt, and pepper. Cook until browned, about 5-7 minutes. Drain excess fat if necessary.
2. Sauté the Onions: In the same skillet, add olive oil. Once hot, add thinly sliced onions and sauté until translucent and slightly caramelized, about 5 minutes.
3. Combine: Mix the cooked ground beef with the sautéed onions in the skillet. Stir everything together until evenly combined.
4. Prepare the Tortillas: Lower the heat to medium. Place a large tortilla in a clean skillet. On one half, layer a generous amount of the beef and onion mixture, followed by a blend of cheddar and Monterey Jack cheeses.
5. Fold and Cook: Fold the tortilla in half, covering the filling. Cook for about 2-3 minutes per side until the cheese melts and the tortilla is golden brown and crispy. Remove from the skillet and keep warm while repeating with the remaining tortillas.
6. Slice: Once all quesadillas are cooked, slice them into wedges for easy serving.
7. Serve with Optional Toppings: Add diced tomatoes, jalapeños, or avocado on the side for an extra touch.

These steps will guide you in making Smashburger Quesadillas effortlessly, ensuring that each quesadilla is packed with flavor and satisfaction.