3 tablespoons vegetable oil, such as safflower
1/3 cup all-purpose flour
2 red bell peppers (ribs and seeds removed), chopped
1 medium onion, chopped
4 garlic cloves, chopped
1 teaspoon dried oregano
Coarse salt and ground pepper
1 package (10 ounces) frozen, cut okra
8 ounces smoked (precooked) andouille sausage, halved lengthwise and sliced 1 inch thick
1 rotisserie chicken (about 2 1/2 pounds), skin and bones removed, meat shredded (about 4 cups)
Store-bought or homemade cornbread, for serving (optional)