I tried this one with a few adjustments: https://tastesbetterfromscratch.com/authentic-new-orleans-style-gumbo/
Aldi didn’t have single green bell peppers, so I used a mixed bag. I also used another sausage than andouille, but I think it’s close enough. Last, I replaced chicken broth with veggie broth because I have so much of it. Totally forgot that I have some self made in the fridge which will be used next time.
I’ve never made gumbo before but reading the recipie, don’t you brown the veg? Wouldn’t it also make more sense to make the roux after browning the sausage (and vag) and using the same pan so the roux dissolves the oil and crust from the browned veg&sausage? That recipe feels like it’s throwing a lot of flavour away if you follow it as written.