Mexican ground turkey tortilla casserole

1 1/2 lb ground turkey 
1 can kidney beans drained and rinsed 
1 4oz can green chopped chiles 
1 28oz can diced tomatoes 
1 package of taco seasoning (can use low sodium) 
12 corn tortillas 
1/2 to 1 cup chopped onion (more or less to your taste)
1/2 cup chopped bell pepper 
2 cups reduced fat fiesta blend cheese (use whatever cheese you like)

 Preheat oven to 350º. Brown ground turkey in large nonstick skillet with onion and bell pepper.
 Mix in beans, tomatoes, chiles and taco seasoning mix. Reduce heat; simmer 5 min. 
Spray 9 x 13 " baking dish with nonstick cooking spray. 
Place half of tortillas (6) in bottom of baking dish, overlapping. 
Spoon half of mixture evenly over tortillas, sprinkle with about 3/4 cup cheese (just guess lol). 
Cover with remaining tortillas and then remaining beef mixture. Top with cheese.
 Cover; bake 25 min.