Turkey Tamale Pie

Ingredients

• 1 tablespoon olive oil
• 1 large onion, diced
• 1 teaspoon salt, divided
• 1 red bell pepper, diced
• 2 poblano peppers, diced
• 1 teaspoon freshly ground black pepper
• 2 teaspoons ground cumin
• 1 teaspoon dried oregano
• 1 (7 ounce) can chipotle peppers in adobo sauce
• 3 cups diced cooked turkey, or more to taste
• 1 (8 ounce) package shredded sharp Cheddar cheese, divided
• 1 (15.5 ounce) jar red enchilada sauce
• 1 1/2 cups chicken broth
• For the Crust:
• 1 1/4 cups cornmeal
• 3/4 cup self-rising flour
• 2 tablespoons white sugar
• 1 teaspoon kosher salt
• 2 large eggs
• 1 1/2 cups milk