There are a lot of restaurant copycat recipes on the internet. Just enter "copycat (name of restaurant) black bean soup" and it may pop up.
For smoky flavor I like to use Eckrich smoked sausage in my bean soups. Works well with just the right balance.
"The only time you should fear cast iron is if your wife is fixin' to hit you with it."-Kent Rollins
First law of science: don't spit into the wind.
Magnus