1. Roast tomatillos, poblano, garlic and onion in a 450 degree oven for 20 to 30 minutes — until the vegetables are soft and starting to brown. Transfer the roasted vegetables to a blender.
2. Add the oregano, avocados, cilantro, spinach, lettuce and salt. Blend until completely processed.
3. Add salsa to the stock as directed above.
Check for seasoning, add more salt if desired.