Preheat your oven to 425˚.
In a large pan/skillet add the ground beef and onion until beef is browned. Drain and return to pan.
Add in Chipotle Chili powder, paprika, cumin, garlic powder, red pepper flakes, oregano, salt and about 3/4 Cup of water. Bring to a simmer reduce heat and allow to cook for about 10 minutes and sauce has thickened. Remove from heat.
Bake soft shells for about 5 minutes in oven. Once done backing spoon in meat mixture fold in half and top with cheese. Place back in oven and allow the to cook for another 10 minutes until shells are crispy and cheese is melted.
While tacos are baking mix all ingredients for the sauce together. Along with any other toppings you would like.