You could top with salsa, sour cream or nacho cheese dip

To bulk out further, throw in some mixed peppers.

Use any flavour tortilla chips if you can't find cheese.

If prepping the beef ahead of time, keep in a sealed container ensuring the beef is cold before refrigerating. It will keep for 3-4 days. I like to add a dash of hot water to help loosen the sauce on the hob. Alternatively, you can reheat in the microwave in blasts until piping hot.