Step 1 Soak the bread crumbs in water to cover until softened. Drain off the excess water (reserve the water to thin the soup if desired) and place the bread in a blender with the garlic. Puree until smooth. Add the avocados and lemon juice and puree. Blend in the oil and salt. Thin the soup, as desired, with the reserved water.
Step 2 Serve the gazpacho at room temperature or chilled. Garnish each serving with chopped green onion, tomato and cilantro.