I make chili with beans all the time! I use Eden Organic Black Soy Beans, they have about 8g carbs per serving I think.

Here's my "recipe"
2lb ground beef
1 can Eden Organic Black Soy beans, drained and rinsed
1 large can diced tomatoes
1 onion chopped
1 green pepper chopped
chili powder, garlic and cumin to taste

Not sure what the total carb count is, I'll figure it out one of these days!