In a bowl, combine ingredients for the daikon slaw. Thoroughly mix together then cover and place in refrigerator until ready to build the sandwiches.
Add all ingredients for the pork meatballs to a mixing bowl and thoroughly combine. Using a 1½-inch food scoop, form the mixture into meatballs. Then line them out over a baking rack on a parchment paper covered baking sheet. Bake for 35 minutes.
In another smaller bowl, add mayonnaise and sriracha and mix thoroughly. If you have a squeeze bottle, add spicy mayo to bottle and place in refrigerator until ready to make sandwiches.
Over medium high heat, heat up grill pan or frying pan. Cut each baguette in half and spray each side with cooking spray. Grill each piece of bread and set aside.
Add 5-6 meatballs to bottom bread, add 4-5 slices of cucumber, then a portion of slaw, drizzle with spicy mayo, a few jalapenos slices and place top bread on. Use two long toothpicks to secure the sandwich, then slice in half.