Can I make these ahead?
Yes. Assemble the bites, cover, and refrigerate up to 4 hours before baking. Add 1–2 minutes to bake time if chilled.
What can I use instead of provolone?
Swiss, cheddar, or mozzarella work well. Swiss is closest to traditional French dip flavor.
How do I reheat leftovers?
Wrap in foil and warm at 350°F for 5–7 minutes until heated through.
Can I use a different deli meat?
Yes. Shredded roast beef, thinly sliced beef, or even turkey can substitute for deli roast beef.
What if I don't have au jus?
Warm beef broth mixed with 1 tbsp Worcestershire sauce and a splash of red wine creates a similar dipping sauce.