Sauté onions and cumin in olive oil. Add sour cream, reserving some cheese for garnish. Simmer 20 minutes. Do not boil. Add remaining ingredients except sour cheese and heat through. I usually have A LOT! This makes A LOT! I use 2 cups pepper before cooking it. Note: I season my chicken with salt, garlic and chili powder before cooking. If the recipe half the ingredients.