Creating Shrimp Al Pastor is straightforward if you follow these simple steps:

1. Prep the Shrimp: In a medium bowl, combine shrimp, achiote paste, olive oil, minced garlic, cumin, paprika, chili powder, lime juice, salt, and pepper. Mix until the shrimp are evenly coated. Allow marinating for 10-15 minutes.

2. Prepare the Grill: Preheat your grill or grill pan over medium-high heat. Make sure it’s well-oiled to prevent sticking.

3. Skewer the Shrimp: If using skewers, thread the marinated shrimp onto them. You can alternate the shrimp with pineapple chunks for added flavor.

4. Grill the Shrimp: Place the skewers on the grill (or add the shrimp directly to the grill pan). Cook for 2-3 minutes on each side, or until the shrimp are opaque and cooked through.

5. Warm the Tortillas: While the shrimp cooks, warm your corn tortillas or lettuce leaves on the grill for about 30 seconds on each side until pliable.

6. Assemble the Dish: Once cooked, remove the shrimp from the grill. Place some grilled shrimp on each tortilla or lettuce leaf, add additional pineapple if desired, and sprinkle with fresh cilantro.

7. Serve: Serve warm with lime wedges on the side for an extra burst of flavor.