INGREDIENTS
4 tbsp
butter
1/2
of 1 white onion- thinly sliced
1
heaping tbsp minced garlic
1 tsp
garlic powder
2 cups
beef stock
1 tbsp
Worcestershire sauce
1 lb
sliced deli roast beef
12
slices provolone cheese
12
slider buns or rolls of choice
Salt (pepper & parsley to taste)