Blackened Zucchini Tacos

Ingredients (12)

• 2 tablespoons extra virgin olive oil
• 2 teaspoons  chili powder
• 1 teaspoon ground cumin
• 1/2 teaspoon kosher salt
• 1/4 teaspoon ground cayenne pepper
• 2 medium zucchini
• 1 medium red onion
• 3/4  cup corn
• 2 teaspoons minced garlic
• 1 can low sodium black beans
• 8 flour tortillas
• Toppings: Sliced radishes