In a food processor or blender, combine one can of beans and the lemon juice. Cover and process or blend until nearly smooth. Set aside.
In a large skillet, cook green onions and garlic in hot oil over medium heat just until tender. Stir in pureed beans, the remaining whole beans, the dried tomatoes, water, oregano, salt, cumin, and hot pepper sauce. Heat through. Serve dip with crackers.