Preheat oven to 400°F. Line a 12x17 inch rimmed baking sheet with parchment paper.
Sprinkle the baking sheet with cheese to create a thin, even layer. Arrange the onion ring slices on top, close together but not overlapping. Lightly brush the tops of the onion rings with olive oil (or spray). Season generously with salt, garlic powder, and paprika. Bake for 18-20 minutes, rotating the pan halfway through, until golden brown and crispy.
While the onion rings are baking, heat 1 tsp olive oil in a skillet over medium-high heat. Add the ground meat and break it up with a wooden spoon. Stir in the seasonings. Add the chicken broth, cover, and cook for 10 minutes. Uncover, stir, remove from heat, and keep covered.
Once the onion rings are done, let them cool for two minutes. Flip the onion sheet over. Layer evenly with ham slices and cheese slices. Spread the ground beef evenly over the cheese, and finally, place the pickles on top. Tightly roll from one short side towards the other. Reposition the roll on the baking sheet with the seam side down. Bake for 7-10 minutes. Slice and serve warm.
Notes
This recipe is a fun and flavorful alternative to traditional cheeseburgers. Adjust seasonings to your preference. Ensure the onion ring layer cools slightly before rolling to prevent cracking.