Ingredients
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8 large flour tortillas
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1 lb deli roast beef, thinly sliced
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2 cups shredded provolone or mozzarella cheese
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1 small onion, thinly sliced (optional, for extra flavor)
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2 tablespoons butter (optional, for sautéing onions)
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1 cup beef au jus, warm (for dipping)
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1 teaspoon Dijon mustard or horseradish (optional, for extra zing)
Instructions
Step 1: Prep the Ingredients
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Lay out the flour tortillas on a clean surface.
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If using onions, sauté them in butter over medium heat until soft and lightly caramelized. This adds sweetness and depth to the roll-ups.
Step 2: Layer the Fillings
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Spread a thin layer of Dijon mustard or horseradish on each tortilla if desired.
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Layer roast beef evenly over the tortillas, leaving about 1 inch from the edge.
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Sprinkle shredded provolone or mozzarella cheese over the beef.
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Add sautéed onions on top if using.
Pro Tip: Don’t overfill—rolling will be easier, and you’ll avoid cheese spilling out during baking.
Step 3: Roll the Tortillas
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Carefully roll each tortilla tightly into a cylinder.
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Place seam-side down on a parchment-lined baking sheet.
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If desired, brush the tops lightly with melted butter for a golden finish.
Step 4: Bake Until Melty
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Preheat oven to 375°F (190°C).
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Bake roll-ups for 12–15 minutes, or until cheese is melted and tortillas are slightly golden.
Variation: For an extra crispy finish, broil for the last 1–2 minutes—just watch carefully to avoid burning.