Blackstone Greek Chicken Tacos

Name: Blackstone Greek Chicken Tacos
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Cuisine: American, Greek
Ingredients: 2 5.3 ounce containers plain Greek yogurt; 2 tablespoons lemon juice; 2 tablespoons mayo; 1 tablespoon dried oregano; 3 to 4 cloves garlic (minced); kosher salt, pepper, crushed red pepper flakes; 1 1/2 pounds boneless, skinless chicken (thighs or breasts) (cut into inch pieces); cooking oil of choice; 1 red onion (sliced); 1 red bell pepper (sliced); 8 mini naan flatbreads (I used Stonefire Mini Naan); Toppings of choice: feta cheese, basil