Makes: 4 servings at $1.56 each. Prep: 10 minutes. Bake: at 375 degrees for 15 minutes.
1. Heat oven to 375 degrees F.
2. Unroll dough into 4 rectangles. Spread each rectangle with 1 teaspoon mustard. Top each with 1 slice roast beef, cheese and one-quarter of chiles.
3. Beginning at short ends, roll up. Pinch seams closed. Place, seam sides down, on baking sheet. Slash tops.
4. Bake in 375 degree F oven 15 minutes, until golden and crisp. Serve warm.