Sauteing vegetables: Heat the olive oil over medium heat. Add the garlic, orégano, and split peas. Cook and stir for a few seconds.
Simmering: Add 1 qt [1lt] of vegetable broth plus 1 qt [1lt] of water. Cover and lower temperature. Simmer until the split peas are very soft. Add more water to maintain the same level and stir when it becomes necessary.
Cooking roots: When the split peas are cooked through, add the dry mushrooms, cassava, malanga, plantain, pumpkin, yam, and corn. Simmer covered over medium heat until all the vegetables and roots are cooked through.
Seasoning: Chop the cilantro and parsley and add to the pot.Season with salt and pepper to taste.
I used dry porcini mushrooms, which are available commercially, or you can make yourself and has a very "meaty" taste.To make the dry mushrooms, wash and pat-dry ¼ lb big porcini mushrooms. Place on an oiled baking pan, sprinkle with salt and cook in the oven at 200 ºF for one hour. Remove from the oven. Cool to room temperature and cut into "spoon-sized" pieces.You need a 6 qt pot or bigger.