I like beans so don’t necessarily advocate chili without beans, but I saw a recipe that used a diced head of cauliflower instead. And a slow cooker. The miraculous slow cooker.
I made it as follows:
1/2 head of cauliflower, diced into pieces
1 diced yellow onion
1 diced red bell pepper
2 minced garlic cloves
28 ounces tomato puree
1/2 cup chicken stock
2 tablespoons chili powder
1 teaspoon salt
1/2 teaspoon pepper
chunks of chicken breast or thigh
a tablespoon or two of some Macedonian pepper relish
Add all ingredients to the slow cooker. Cook on low for eight hours. And you are done.