01 -
Preheat the oven to 350°F (175°C). Grease an 11x7-inch or similar 2-quart baking dish with nonstick spray.
02 -
Brown the ground beef in a large skillet over medium-high heat with the onion, garlic, 1/2 teaspoon salt, and 1/4 teaspoon pepper. Cook until the beef reaches 160°F and the onion is soft, then drain excess fat.
03 -
Stir the chopped dill pickles into the hot beef. Spread the mixture evenly in the prepared baking dish.
04 -
Whisk the eggs, mayonnaise, and half-and-half until smooth. Pour evenly over the beef mixture, then sprinkle with 1 cup of shredded cheese.
05 -
Arrange the frozen fries in a single even layer over the cheese. Season the fries with garlic powder, the remaining salt, and the remaining pepper.
06 -
Bake uncovered for 35-40 minutes, until the center is set and the fries are golden. If needed, broil for 1-3 minutes to crisp the fries while watching closely.
07 -
Sprinkle the remaining 1 cup cheese over the fries. Return to the oven for 3-5 minutes, until melted.
08 -
Let the casserole rest for 5-10 minutes. Serve with shredded lettuce, diced tomatoes, ketchup, mustard, or Thousand Island dressing.