Next, set a pan or griddle over medium heat and add the ground beef. Sprinkle a bit of salt on top and add a pinch of bouillon powder for extra flavor.

Sear the beef for 1-2 minutes without chopping it up. Then, add the onions on top of the beef and start breaking everything up with a spatula.

Cook for 2 more minutes or until the onions are soft and the beef is browned.

While the beef is cooking, slice open hoagie roll and spread some mayo onto the interior of the bread.

Once the beef is done, add the cheese slices on top and then place the bread on top to let everything steam, melt, and crisp up for a minute.

Then, using a spatula to keep everything together, flip the sandwich over so that the roll is on the bottom and the meat and cheese are on top.

To finish, top the beef and cheese mixture with some shredded lettuce. Then, add a few slices of seasoned tomatoes on top.

Transfer the roll to a sheet of aluminum foil and parchment paper and wrap everything up tightly. This will steam a bit and transform it into a true bodega experience.

Slice open the sandwich and enjoy.