For the Chicken:

• 1 1/2 pounds boneless, skinless chicken breasts or thighs
• 1 tablespoon olive oil
• 1 teaspoon chili powder
• 1/2 teaspoon cumin
• 1/2 teaspoon garlic powder
• Salt and black pepper to taste

For the Street Corn Topping:

• 1 1/2 cups corn kernels (fresh, canned, or frozen and thawed)
• 1/4 cup mayonnaise
• 1/4 cup sour cream or Greek yogurt
• Juice of 1 lime
• 1/2 cup crumbled cotija or feta cheese
• 1/4 cup chopped cilantro
• 1/4 cup finely diced red onion

For Serving:

• 8 small flour or corn tortillas
• Optional toppings: sliced jalapeños, avocado, hot sauce