Heat a large stock pot, or very large skillet over medium heat; add oil, and saute zucchini, onion and garlic for 3-4 minutes. Stir in broth, salsa verde, tomatoes, chilies, and spices. Bring to boil, then simmer on low for 5 minutes. Add spinach, corn, meat, and beans; simmer 15-20 minutes. Season with salt and pepper to taste.