Prep the Skewers: If using an outdoor grill and wooden skewers, soak the skewers in water for at least 30 minutes before grilling.
Season the Shrimp: Rinse the shrimp in cold water then pat them very dry with paper towels. Place shrimp in a medium bowl and toss with two teaspoons of olive oil, seasonings (1/2 tsp. each of ancho [or regular] chili powder, garlic powder, and onion powder, and 1/4 tsp. cumin), and a pinch each of salt and freshly cracked pepper. Set the shrimp aside to marinate for 15 minutes.
Make Avocado Lime Slaw: While the shrimp marinate, mash the diced avocado (only one half of the avocado) in the bottom of a large bowl. Stir in the lime zest, lime juice, seasonings (1/4 tsp. each of ancho [or regular] chili powder, garlic powder, and cumin), and a few dashes of your favorite hot sauce. Stir in the sour cream and mayonnaise until well blended and creamy. Toss in the shredded cabbage, red onion, cilantro, and a healthy pinch of salt and freshly cracked pepper until all ingredients are thoroughly combined. Cover and refrigerate until ready to serve.
Grill Shrimp: Lightly oil the grill grates of an outdoor grill, then turn the grill to medium heat. If using a grill pan: set grill pan on the oven over medium heat. Carefully skewer the shrimp, then grill shrimp for 2-3 minutes per side until charred and cooked through. Transfer to a plate and tent with foil to keep warm. (If you’re using a grill pan on the stove top, skewering the shrimp isn’t necessary, but it does make it easier to flip them!)
Build Tacos: Slice the remaining avocado half into thin slices. Divide the avocado lime slaw, avocado slices, and grilled shrimp between warm tortillas. Serve warm!
Notes
I used jumbo shrimp (20/25) for these grilled shrimp tacos, but large shrimp (31/40) or (26/30) will work, too!If using corn tortillas, use two tortillas per taco.You may have extra avocado lime slaw, which can be used in wraps or as a side dish.