Paleo Cornbread Dressing

Name: Paleo "Cornbread" Dressing
Ingredients: 1/3 large onion (rough dice); 2 stalks celery (sliced); 2 carrots (sliced); 1 teaspoon sage leaves (minced); 1/2 teaspoon each salt and pepper; 4 cups gluten-free flour mix (2 parts coconut flour, 3 parts almond flour and 8 parts tapioca flour); 2 cups cashew meal; 1-1/2 tablespoons baking soda; 2 teaspoons kosher salt; 3 tablespoons melted butter or other oil; 5 eggs; 1-1/2 cups broth