Heat a large nonstick skillet over medium-high heat. Lightly coat with cooking spray. Add the ground turkey, ½ teaspoon cumin, ½ teaspoon oregano, ¼ teaspoon salt and pepper and cook, breaking up with a wooden spoon, until browned. Transfer to a bowl.
Reduce the heat to medium and add 2 teaspoons olive oil to the skillet. Add the onion and cook, stirring occasionally, until the onion is tender and starting to brown, 3 to 4 minutes.
Add the remaining 1 teaspoon olive oil and stir in the red bell pepper. Cook for 1 minute. Stir in the garlic, remaining ½ teaspoon cumin, remaining ½ teaspoon oregano and ¼ teaspoon salt. Cook for 1 minute.
Add the enchilada sauce, salsa, green chiles, black beans, corn, rice and cook ground turkey to the skillet. Increase heat and bring the mixture to a boil. Reduce the heat and simmer until the sauce has thickened slightly, about 10 minutes.
Stir in the corn tortillas, then sprinkle the cheese over the mixture. Cover the skillet for a minute to allow the cheese to melt.