Bratacos

Preheat oven to lowest setting, usually just under 200ºF.
 
Heat a skillet over medium-high heat. Add bratwurst meat to skillet and cook until no longer pink, about 5 minutes. While meat is cooking, chop into small pieces with a wooden spoon and stir frequently. Add taco seasoning and water to meat in skillet and cook according to instructions on seasoning packet.

While meat is cooking, place taco shells in the oven to warm them. Whisk mustard and sour cream, set aside.
 
To set up your taco bar, place taco shells carefully into small bowls or on a plate. Transfer meat to a heat-proof bowl and set next to taco shells. Follow with ramekins of mustard sour cream, shredded cheese, diced onions, taco sauce, pickled jalapeños, fresh cilantro, or any other toppings of your choosing. Set out serving spoons, napkins, and plates.
 
Have fun and enjoy your bratacos!