Put the potatoes in a small pot, cover with cold water, and bring to a boil over high heat. Reduce to a simmer, and cook for 5-8 minutes, until the potatoes are just cooked through but not soft. Drain and set aside.Heat the oil in a large pan over medium heat, then add the garlic and cook, stirring occasionally, until golden brown, around 3 minutes. While the garlic is cooking, drain the can of tomatoes over a measuring cup, collecting the tomato liquid in the cup. Add enough water to make 1 cup of liquid.Add the potatoes and tomato liquid mixture to the pan, bring to a boil, and simmer, covered, for 5 minutes. Add the tomatoes, cauliflower, spices, and ginger (or carrot-ginger dressing), and simmer, covered, for 5 more minutes. Add the peas and salt, and cook, uncovered for 10 minutes, or until the cauliflower is cooked through. Stir in herbs and season to taste with salt.