Years ago I made my jambalaya with that box mix. I'm originally from Montana and my parents wouldn't eat the local food. I liked it so I used Zatarains boxes and would put in fresh tomatoes, onions and bell peppers for my jambalaya and it was pretty damn good.
So....
I'm going easy on you 'cause you did say you never made anything like this before and you might be getting hooked on good Louisiana food.
Zatarains is a well known brand. But the jambalaya it makes is nowhere near the real thing, trust me.
It's so easy to just do it from scratch and 1000 times better.
There are 2 types of jambalaya, red and brown < brown is cajun jambalaya, red is creole.
I like brown but both are good. Red, Creole jambalaya has tomatoes in it.
Jambalaya has few ingredients.
For the herbs, onions, bell peppers, parsely, garlic, green onions, and some use celery and bay leaves.
Do a search for "John Besh: New Orleans' Best Jambalaya | National Geographic", he does a few video versions of it online and gives you the basics for this dish. Bacon, Bacon, Bacon......
My farvorite is brown with Tasso, smoked boneless chicken thighs, and andouille sausage. MMMMMM did I say Bacon ?
Make it from scratch and you will never ever use a box again.
I'm about 20 miles fron New Orleans and cook it about 20 times a year. like most of us in the south, our jambalya is never the same but always good.
Hint, until you get good at it use par boiled rice. It's a liquid to rice ratio thing.
Much better with regular long grain, but par boiled is very forgiving. I also use a little "Kitchen Bouquet" in my brown jambalaya. Another hint, Most recipies have creole seasoning in them, if you use Tasso most of the seasoning is already there, Might need a teaspoon of extra seasoning.
Regular smoked sausage is just a good as andouille in jambalya.
The jambalaya in the pic is andouille only, ran out of smoked chicken thighs. :(
It's a comfort food, use what you have.
I do use some "boxed" / starter stuff. The gumbo was made with Blue Runner gumbo base in a can. Hard to tell the difference. Chicken, shrimp, tasso, and sausage, really good stuff.