Blackened Salmon Tacos with Avocado Sauce and Black Bean & Corn Relish

Name: Blackened Salmon Tacos with Avocado Sauce and Black Bean & Corn Relish
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: Mexican
Ingredients: 1/2 tablespoon chili powder; 1/2 tablespoon smoked paprika; 1 teaspoon garlic powder; 1 teaspoon kosher salt; ¼ teaspoon black pepper; 1 1/4 pounds salmon fillet; 1-2 tablespoons olive oil; 1 small avocado, peeled, seeded and cut into big chunks; 1/4 cup low-fat sour cream; 1/4 cup low-fat mayonnaise; 1/4 cup water; 1 cup fresh cilantro leaves (loosely packed); 1 clove garlic; 1 small jalapeño pepper, seeded; 1 tablespoon white wine vinegar; 1-2 tablespoons fresh lime juice; 1/2 teaspoon kosher salt; 1 cup canned black beans, drained and rinsed well; 1 1/4 cup frozen corn kernels, thawed; 2 tablespoons diced red onion (optional); 1 tablespoon chopped cilantro; 2 teaspoons fresh lime juice; 1/4 teaspoon kosher salt; Corn or flour tortillas, warmed; Crumbled cotija cheese; Cilantro leaves