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Tags and nutritional info are auto-generated and may be inaccurate. Always check the full ingredient list before cooking.
Preheat a cast-iron skillet over medium-high heat for 5 minutes.
Press the ground beef into a thin, even layer and season with adobo, sazón, and black pepper. Let sear undisturbed for 2–3 minutes to develop a nice crust.
Flip the beef, add the diced onion, and use two metal spatulas to chop everything together. Cook for another 3–4 minutes, until the beef is fully cooked and finely chopped.
Divide the beef into two roll-length portions. Top each with 2–3 slices of American cheese, cover, and let melt for about 30 seconds. Chop again to mix that melty cheese throughout the beef.
Push the meat aside, spread mayo on the rolls, and toast cut-side down in the skillet until golden.
Load each toasted roll with the cheesy beef mixture, then pile on shredded iceberg lettuce, sliced tomato, and ketchup.
Wrap each sandwich tightly in foil for 1–2 minutes to steam and bring everything together. Slice in half and enjoy HOT!
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For a spicier kick, add jalapeños or hot sauce to the sandwich.
Use two spatulas to chop the beef finely for the authentic chopped cheese texture.
Can I use a different type of cheese?
Yes, you can substitute with cheddar or any cheese that melts well.
What if I don't have a cast-iron skillet?
You can use any heavy-bottomed skillet, but a cast-iron skillet helps develop a better crust.
How can I make it healthier?
Use leaner ground beef and whole wheat rolls for a healthier version.
Can I prepare the beef mixture in advance?
Yes, you can prepare the beef mixture ahead of time and reheat it before assembling the sandwiches.
Is there a vegetarian version?
You can use plant-based ground meat and cheese alternatives for a vegetarian version.
