This recipe was very slightly adapted from Love Your Leftovers - partially due to personal preference (I don't eat mayo) and partially due to the variety of ingredients available at my local supermarket.
Cut the baguette in half, then split it down the center. Place cut-side up on a baking sheet. Toast in the oven for 5 minutes, or until slightly crispy.
In a medium saucepan, heat the olive oil. Add the garlic and cook 1-2 minutes, or until soft. Add the pulled pork, fish sauce, water, and pepper. Bring to a simmer; cook until the liquid is absorbed, 4-5 minutes.
In a small bowl, mix the yogurt and Sriracha. Spread both sides of the bread with yogurt sauce. Top the bottom slice with pork and vegetables; top with a second piece of bread.