Heat A Large Pot Over High Heat.
When Hot, Add Butter, Onions, Garlic, Bell Peppers, And Salt.
Sauté Until Vegetables Soften, About 3–4 Minutes.
Add Squash And Continue To Cook For Another 2 Minutes.
Add Chili Powder, Cumin, Cinnamon, Broth, Tomatoes With Juices, And Beans.
Bring To A Boil, Then Reduce Heat And Let Simmer For 5 Minutes.
Serve With A Dollop Of Sour Cream In Each Bowl.