Spray an 8″ square casserole pan with nonstick cooking spray. Set aside. Preheat oven to 375° F.
Add a drizzle of oil to a large skillet and place over medium high heat. Once hot, add the ground turkey and the chopped vegetables. Stir occasionally, breaking up the turkey into small pieces. Add the chili powder, cumin, salt, and cayenne pepper. Mix well.
Add the diced green chilies to the turkey, along with the diced tomatoes. Stir well and continue to cook until turkey is completely done and remove from heat.
Spread a thin layer of the ground turkey mixture at the bottom of your casserole pan. Top with a layer of refried beans, a sprinkle of cheese and four of the tortilla strips. Repeat this process three times until all of the ground turkey has been used. After laying on your last four tortilla strips, spread the salsa over top along with remaining cheese.
Place in the oven for 30 minutes. Cheese will be melted and bubbling. When casserole comes out of the oven, let sit for 10 minutes before slicing. Serve with cilantro and sliced avocado.