Fill pot with water and throw in crushed ginger, onions, and shredded fish. Bring to a boil over medium high heat. Note: speed up the boiling process by putting the lid on. This should take about 10 minutes.Lower heat and simmer for about 5 minutes.Throw in the squash, green beans, and eggplant. Bring to a boil and simmer for another 5 minutes.Add the tomatoes and okra and cook for about 2-3 minutes, just until limp.Season with fish sauce, salt, and pepper.Turn off heat and add the spinach or malunggay. Stir to mix. The residual heat will cook the leafy greens enough.Let soup stand for a few minutes before serving.Ladle into individual soup bowls and enjoy!