Lighter Chicken Fajita Casserole

Name: {Lighter} Chicken Fajita Casserole
Ingredients: 1 lb chicken, cooked and shredded; 2 Tbsp olive oil; 1/2 white onion, diced; 1/2 red onion, diced; 1/2 each red, yellow and green bell pepper, diced; 1 Tbsp chile powder; 1 Tbsp garlic powder; 1 Tbsp cumin; 1/4 tsp paprika; 1/8 tsp cayenne; 1/4 tsp salt; 1/4 tsp pepper; 1 cup black beans; 1 can diced green chiles; 1 cup Enchilada Sauce; 3/4 cup + 1/2 cup Kraft White Cheddar Cheese, shredded; 1 cup cooked quinoa; Garnishes: Green Onion, Jalapenos, extra shredded cheese