Evenly distribute the beef mixture onto each roll.
Top each sandwich with two slices of provolone cheese.
Broil in the oven for 2-3 minutes, or until the cheese is melted and bubbly.
Serve hot and enjoy!
Variations & Tips
For a spicier kick, add some sliced jalapeños or a dash of hot sauce to the slow cooker. If you’re looking for a lower-carb option, skip the hoagie rolls and serve the beef mixture over a bed of cauliflower rice or in lettuce wraps. You can also experiment with different cheeses like mozzarella or cheddar for a unique twist. And if you have a bit more time, caramelizing the onions before adding them to the slow cooker can add an extra depth of flavor.
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