Place all taco ingredients (shrimp, oil, lime, and spices) into a gallon-sized ziplock baggie or bowl. Gently shake or stir until the shrimp are fully coated in the oil, lime, and spices.
Seal (or cover), then marinate for 30 minutes at room temperature.
Preheat oven to 400 degrees F and line a baking sheet with a silicone baking mat.
Dump the contents of the ziplock baggie onto the prepared baking sheet.
Bake in preheated oven for 6-8 minutes, or until the shrimp are cooked.
Slaw
In a large bowl, stir together all slaw ingredients (coleslaw, cilantro, sour cream, mayo, garlic, and salt).
Taste and re-season.
Store, covered, in the fridge until ready to use.
Assemble
Place warm shrimp into your favorite tortilla, top with a generous scoop of slaw, and serve with optional toppings!