01 -
Preheat your air fryer and cook the shoestring French fries according to package directions until golden and crispy. If you don't have an air fryer, bake them in a 425°F oven following package instructions.
02 -
Preheat your oven to 350°F and grease a 7x11 inch casserole dish with cooking spray or butter.
03 -
Heat a large skillet over medium-high heat. Add ground beef and diced onion, cooking for 8-10 minutes while breaking up the meat until no pink remains and onions are softened.
04 -
Add minced garlic to the beef mixture and cook for 30-45 seconds until fragrant. Season with garlic powder, onion powder, salt, and pepper. Drain off any excess grease.
05 -
Add both cans of soup (cream of mushroom and cheddar cheese) to the beef mixture. Stir until well combined and heated through, about 2-3 minutes.
06 -
Transfer the meat mixture to your prepared casserole dish, spreading it evenly. Top with the cooked French fries, then sprinkle the shredded cheddar cheese over everything.
07 -
Bake for 10-15 minutes until the cheese is melted and bubbly, and the fries are heated through.
08 -
While the casserole bakes, whisk together all burger sauce ingredients in a small bowl. Drizzle the sauce over the hot casserole before serving, or serve it on the side for dipping.