Barbecued Pork Sandwiches
1. 1 small yellow onion, cut into 1/2-inch-thick rounds
2. 1 teaspoon canola oil
3. 2 whole-wheat buns, split horizontally
4. Chipotle-Marinated Pork Tenderloin, grilled (see note), thinly sliced
5. 1/3 cup prepared barbecue sauce.
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