Winning county fair recipe in casserole division

hi fans, just to let you know that this past june i competed in the san mateo county fair my favorite casserole contest and won best in show, so heres the winning recipe!

Chicken enchilada casserole

10 small corn tortillas
1 small can green chile enchilada sauce
leftover or cooked chicken, cut into bite size pieces
3 cups shredded Monterey jack cheese
1 can diced olives
½ onion, chopped (any kind)
sour cream for garnish

quickly sauté onion and olives in a small amount of oil. Set aside
in a frying pan with small amount of oil brown tortilla on both sides (as you were making enchiladas) drain tortillas on paper towels to take off excess oil. Quarter rounds into fourths and set aside. In a casserole dish spray the bottom part with Non stick cooking spray, and spoon a little sauce on bottom and spread around.
Preheat oven to 375. meanwhile layer dish with tortilla quarter pieces on the bottom. Now layer the olive mixture evenly over tortillas then the chicken. Sprinkle with cheese to lightly evenly to cover. Cover cheese with sauce to your liking. Repeat layers as you were making lasagna. Finally top with sauce and cheese to layer and bake for 40 minutes depends on sides of casserole. Take casserole out of oven after 40-45 minutes and let it sit for 15 minutes. Then divide into plates and garnish with Sour cream if desired!