Flatbread with Onions and Mustard Seeds

Description
Thanks to purchased frozen dough, this bread is a snap to make. Serve it with soups, salads and pastas.
 * Contributed by Jenn B aka Mom2sam and Tiny at World Recipes Y-Group
 * Makes 1 flatbread.

Ingredients

 * 1 pound frozen white bread dough (⅓ of 3-pound package), thawed
 * 3 tablespoons olive oil
 * 3 cups finely chopped onions
 * 2 tablespoons minced garlic
 * 2½ tablespoons Dijon mustard
 * 2 tablespoons yellow mustard seeds
 * 1½ teaspoons dried thyme

Directions

 * 1) Place dough in large bowl. Cover with towel and let rise in warm draft-free area until doubled, about 1 hour.
 * 2) Preheat Oven to 450°F.
 * 3) Heat 2 tablespoons oil in large non-stick skillet over medium heat.
 * 4) Add onions and garlic and sauté until brown and tender, about 10 minutes.
 * 5) Add mustard, mustard seeds and thyme and stir 1 minute. Cool.
 * 6) Oil a large baking sheet.
 * 7) Using a rolling pin, roll out dough on floured surface to 14x5-inch rectangle.
 * 8) Spread ⅓ cup onion mixture evenly over dough.
 * 9) Starting at 1 short end, roll up dough jelly roll style.
 * 10) Using rolling pin, roll out dough to 12x8-inch rectangle.
 * 11) Transfer to prepared baking sheet.
 * 12) Brush with remaining 1 tablespoon oil.
 * 13) Sprinkle remaining onion mixture atop dough.
 * 14) Bake bread until golden brown, about 20 minutes.
 * 15) Serve warm or at room temperature.