I did it the easy way: packaged andouille sausage, a rotisserie chicken from the hot rack, and frozen, peeled shrimp. Fresh veggies, though, and handmade roux. Used canola oil for the roux, but now want to try with butter and then again with bacon fat. Smoked chicken sounds good, though I'd have to find it somewhere cooked, as I have neither tools nor skills to do it myself.