01 -
Preheat the air fryer to 200°C. Cook frozen shoestring fries according to package instructions until golden and crispy. Set aside.
02 -
Heat a large skillet over medium-high heat. Add neutral oil, then ground beef and diced onion. Sauté and break meat apart until fully browned and onions are soft, about 6–8 minutes.
03 -
Stir in minced garlic and cook briefly for 30–45 seconds until fragrant, avoiding browning.
04 -
Add onion powder, garlic powder, salt, and black pepper to the skillet. Stir to distribute seasonings evenly. Drain excess fat thoroughly.
05 -
Add canned cheddar cheese soup and cream of mushroom soup to the meat mixture. Stir well until cohesive and creamy.
06 -
Lightly grease a 28x18 cm baking dish with oil. Spread the creamy meat mixture evenly along the bottom.
07 -
Arrange crispy cooked french fries over the meat base, then sprinkle shredded sharp cheddar evenly across the top.
08 -
Preheat oven to 175°C. Bake for 10–15 minutes until cheese is fully melted and fries are just browned. Monitor closely to avoid burning the cheese or fries.
09 -
While the casserole bakes, combine mayonnaise, ketchup, mustard, pickle juice, dehydrated onions, and a pinch of black pepper in a bowl. Whisk until smooth and creamy.
10 -
Let the casserole rest for 5 minutes after baking. Drizzle prepared burger sauce over the hot surface just before serving.