Begin by chopping, slicing, and dicing the onions, celery, and bell peppers respectively. If necessary, mince the garlic.
Next cut the smoked ham or sausage into portions of the desired size.
Add the olive oil the stock pot and begin heating on medium-high heat.
After the oil has begun to flow freely, add to the pot the onions, celery, sausage and garlic. Cook until the onions are starting to caramelize.
Add the rice and mix thoroughly.
Next add the canned tomatoes, bell peppers, shrimp, scallops, salt, bay leaves, cayenne pepper, and thyme.
If you are using more than 1 cup of rice, either use more canned diced tomatoes or add water to account for this.
Bring the contents of the pot to a simmer, cover, and reduce the heat to low.
Cook until the at least the shrimp and the scallops have been thoroughly cooked, and as long as it takes for the rice to cook to your preference.
Remove the pot from the heat and allow to stand for a few minutes.
Chopped up the scallions and stir them into the jambalaya.
Serve, perhaps with corn bread or muffins.