Preheat the Oven: Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish or line it with parchment paper.

Cook the Ground Beef: In a large skillet, cook the ground beef over medium heat, breaking it apart with a spatula. Season with onion powder, garlic salt, salt, and black pepper. Once cooked, drain excess fat and remove from heat.

Add the Onions and Pickles: Stir in the minced onions and chopped dill pickles. Let the mixture cool slightly.

Prepare the Cheese: Slice the block of American cheese into small squares or tear it into pieces for easier portioning.

Assemble the Bombs: Flatten each frozen dinner roll with your hands. Place a spoonful of the beef mixture in the center, then top with a piece of cheese. Fold the edges around the filling and pinch tightly to seal.

Arrange in Baking Dish: Place the sealed bombs in the prepared baking dish, leaving a little space between each one.

Brush with Egg Wash: Brush the tops of each bomb with the beaten egg for a golden, glossy finish.

Bake: Sprinkle sesame seeds on top of the bombs and bake for 15-20 minutes or until golden brown and cooked through.

Serve: Let the bombs cool for a few minutes before serving. Serve with your favorite dipping sauces, like ketchup, mustard, or a homemade Big Mac sauce!