01 -
Preheat oven to 425°F and line a baking sheet with parchment paper. Cook Texas toast according to package instructions, flipping halfway through until both sides are golden.
02 -
Prepare au jus by mixing packet contents with cold water per package directions. Simmer gently until fully dissolved and heated through.
03 -
Add sliced roast beef directly into the hot au jus and let it warm for a few minutes to absorb flavor and heat evenly.
04 -
Place half a slice of provolone on each toasted Texas toast slice. Top with warm roast beef and cover with the remaining half slice of cheese.
05 -
Return to oven for 3 to 5 minutes until cheese is fully melted and bubbling. Optionally garnish with dried parsley and serve with reserved au jus.