blackened tilapia baja tacos

Ingredients

• 1/4 cup sour cream, reduced fat
• 2 tablespoons fresh cilantro, chopped
• 2 tablespoons fresh lime juice
• 1 - jalapeno pepper, seeded and chopped
• 1 cup white onion, thinly sliced
• 1 1/2 teaspoons paprika
• 1 1/2 teaspoons brown sugar
• 1 teaspoon dried oregano
• 3/4 teaspoon garlic powder
• 1/2 teaspoon salt
• 1/2 teaspoon ground cumin
• 1/4 teaspoon ground red pepper
• 4 - tilapia fillets, 6 oz each
• 1 tablespoon canola oil
• 8 - 6-inch corn tortillas
• 1/2 - ripe avocado, peeled, thinly sliced
• 4 - lime wedges