Cajun Retatouille is my personal favorite
You need a big pan with a top. I have what looks like a large, deep frying pan with a top, not a deep pot.
Any pot large enough to hold all the ingredients will work so long as it has a cover.
I usually use 2 or 3 eggplants but it can be more so long as the pot is big enough. If the eggplants are large then two is more than enough.
It cooks down so it doesn't matter if the top of the pot doesn't close at first.
Two eggplants are enough for two people with some leftovers.
Slice the eggplants into cubes. I slice them in half longways, then slice those into 4 strips longways, then slice crossways every inch or so. I don't skin them though some people don't like eggplant skins.
1 or 2 diced onions, 1 or 2 sliced bell pepper, chopped green onion. 1 diced shallot. 1 slice of bacon chopped up.
At least 4 cloves of garlic sliced up.
Some people put zucchini or tomato in ratatouille, but I think it makes it too bitter tasting and you lose the sweet taste of the eggplant.
If you want meat in it I have done shrimp, sausage, both. My preference is Cajun Andouille sausage. I slice the sausage into small pieces like I did the eggplant. I put in 2or 3 sausages sliced up but add as much as you like.
I start the pan off with about 1/2 a stick of butter plus add olive oil to it mixes, let it heat, and then start adding the chopped up ingredients.
Then I pour probably 1/4 cup olive oil on top, Sprinkle on salt and Cajun seasoning. I use Tony Chachere's but it can be whatever pepper you like
. Use good olive oil, not the cheap stuff. 1/2 teaspoon Tony Chachere and 1/2 teaspoon of salt is what I use. (to taste)
Then put a top on the pot with medium heat and let it cook slowly. Its important the top is on so the eggplant gets steam cooked.
I probably stir it up every 15 minutes or so. Higher heat will mean more stirring otherwise it will burn and stick to the bottom.
Once the eggplant goes a limp I taste the broth and see if its seasoned enough. Add more salt/pepper if you want and stir it up so it mixes up.
I leave the top off and let the liquid boil off a little for a while on low heat.
Its really like what the French call a Ratatouille but modified to the veggies I like.