
Preheat oven to 350 degrees. In a medium-sized saucepan over medium-high heat, melt the butter. Whisk in the flour, salt, and pepper to create a roux. Slowly whisk in the turkey stock and then the heavy cream and whisk until it starts to thicken. Add in the cheddar and continue to whisk until melted.
In a large bowl add the turkey, 1 cup of cornbread, peas, carrots, green beans, and corn. Add in the cheese sauce and mix until incorporated.
Spread evenly into a 9x13 inch pan. Top with remaining cornbread. Cover with foil and bake for 20 minutes. Remove foil and bake until golden for 10 more minutes.