I have had a white chicken chili that was not bad....I do not know how to cook it but it was ok....I prefer to make mine with beans and down texas way they do not use beans according to my friend in Houston.....but I use ground beef that I brown and I add cans of tomato...some whole peeled and some chopped or diced.....I make mine thinner usually but in one cooking made it very thick accidentally and I liked that too....there is a smoke house near here that makes their chili with beef brisket shredded.....I do not ever use green peppers...but in past have been able to use doni sali peppers that are called boonie peppers on guam and have heat like you would not know for their small size....I grew my own from seed I brought home from Guam.....
last chili which was about ten days ago? I used a yellow bell and red or orange bell pepper that I chopped and I liked it but the thing was more a soup....put lots of beef in it though and I use oyster crackers unless not available then I crunch up saltines.....and beans usually I use red beans. kidney beans of dark or red variety and then too use black beans too.....so I am kind of eclectic with chili...but never green pepper and no veggies....just beans....and tomatoes.....

Texas: any meat can be used meaning venison, bison, squirrel, armadillo, etcetera, although most use beef. It is not a soup, but thick. Kidney beans are optional. It will have onions, although peppers can be used... meaning chili peppers, or hotter if desired. Chili powder can replace the peppers. Usually also has garlic, oregano, and cumin. There are packaged chili seasoning packs that go from one to five alarm. It will have a rich tomato base, and be slow cooked. Served in a bowl with some chopped onion and shredded cheese on top, with saltine crackers on the side. No other veggies get added. Lots of chili contests all around the state.

I never made my chile with any veggies, just ground meat, your prefernece, beans, onion, peppers and sauce and spice to your taste, I never really liked it too hot or too spicy but that's me, oh and of couse salt and pepper.
When using turkey or chicken I jse white beans, if using beef then kidney beans and all of them taste better with cheese on top, :-)

Most everything tastes better with cheese. When it comes to spicy foods like chili, the cheese can reduce the heat factor. Like Jean, I like spicy, but not hot.