3cupswaterto make the au jus, check package directions
14ozRoast Beef Lunch Meat
Turn oven onto broil. Line a baking sheet with foil and set aside.
Whisk powdered Au Jus together with water in the bottom of a pot or deep skillet. (Mine called for 3 cups of water, but double check yours to make sure that increment of water to powder is correct. You want to make it according to package directions.) Smash two cloves of garlic and add them to the au jus. Add the bay leaves. Transfer to stove and bring to boil. Reduce to simmer and add in the roast beef to warm. Keep meat warm over low heat.
While au jus/meat is warming, toast your hoagie buns. I like to toast the bottoms of the rolls, and toast the insides. Watch your bread closely as you don't want it to burn. The toasting is definitely optional but it helps keep your bread together when you add the meat.
Once the insides of the bread are toasted, spread 1/2 tablespoon of butter onto each half and rub with raw garlic clove.
Divide the meat between each bottom half of the sandwich and add the provolone cheese, 1 slice per sandwich. (You can always add more if you like it cheesy.) Broil again to melt the cheese; should take 30 seconds to 1 minute since the meat is already hot.
Add the top, cut in half and serve with hot au jus.
To make this more Macro Friendly, simply reduce the butter by half OR omit it completely.