When oil is hot, drop squash mixture by heaping tablespoons into skillet and immediately flatten. Serve hot with Chipotle Crema. Makes 8 to 12 cakes. Blend sour cream and yogurt. Makes 1 cup.
Squeeze tomatoes through fingers and add with juice.
Add oregano and salt. Add chilies and simmer over low heat at least 35 minutes or as long as all day, if celebrating. Add water as necessary. Add beans, or serve with beans on the side. Makes 4 to 6 servings.