Slice sausage and cut chicken breasts filets into bite size pieces.
If I'm using the seafood, unless I have left-over shrimp and crawfish from a seafood boil, I buy the frozen peeled shrimp and crawfish from Wal-Mart.
Combine all ingredients (except cut butter slices), including the raw meats or seafood, in a large turkey size "throw-away" roasting pan.
Mix well and place the pats of butter on top of the mixture. Place the large roasting pan on a large cookie sheet for support when putting in or taking out of the oven.
Cook uncovered in a 350 degree oven for 1 hr 15 mins. Take out and stir. Depending on your oven, if it's still kinda soupy, put it back in oven for an additional 15 to 20 minutes until it gets to a jambalaya consistency. BUT watch it doesn't burn.