Follow these simple steps to create your Grilled Mahi-Mahi Fish Tacos with Creamy Jalapeno Sauce:

1. Prepare the Marinade: In a bowl, mix olive oil, paprika, cumin, garlic powder, salt, and pepper.
2. Marinate the Fish: Coat the Mahi-Mahi fillets in the marinade and let sit for about 10 minutes.
3. Grill the Fish: Preheat your grill to medium-high heat. Grill the Mahi-Mahi for 4-5 minutes per side, or until the fish flakes easily with a fork.
4. Make the Creamy Jalapeno Sauce: In a separate bowl, combine sour cream, mayonnaise, minced jalapenos, lime juice, and salt. Mix well until smooth.
5. Assemble the Tacos: Warm the tortillas on the grill for about 30 seconds. Top each tortilla with shredded cabbage, a piece of grilled Mahi-Mahi, a drizzle of creamy jalapeno sauce, and fresh cilantro.