Start by patting the salmon fillets dry with paper towels. Mix olive oil, lemon juice, Cajun seasoning, garlic powder, smoked paprika, salt, and black pepper in a bowl. Rub all over salmon.

For enhanced flavor, marinate the salmon in the refrigerator for 15 to 30 minutes. Prepare cooking equipment during this time.

Heat a non-stick skillet over medium-high heat. Add olive oil, then place salmon skin-side down. Sear for 4 to 5 minutes, then flip and cook for another 3 to 4 minutes until cooked through.

For other cooking methods, bake at 400°F for 12 to 15 minutes, grill for 4 to 5 minutes per side, or air fry at 400°F for 8 to 10 minutes.

Let the salmon rest for about 5 minutes to redistribute juices.

In a blender, combine avocados, sour cream (or Greek yogurt), lime juice, cilantro, minced garlic, and cayenne pepper. Blend until smooth, adjusting consistency with water.

Prepare rice, black beans, and corn according to package instructions if serving in bowls. Prepare tortillas if making tacos.

Flake the salmon over the rice or tortillas, drizzle with avocado lime crema, and garnish with lime wedges and toppings of choice.