In a large pot, bring water to a boil. Add the cubed potatoes and cook until tender, about 15-20 minutes. Drain and set aside.
In a separate pot, cook the maize and green peas until tender. Drain and set aside.
Heat the vegetable oil in a large skillet over medium heat.
Add the chopped onion and cook until translucent.
Stir in the minced garlic and cook for another minute.
Add the diced tomato and bell pepper. Cook for about 5 minutes, until the vegetables are softened.
Stir in the ground cumin, paprika, black pepper, and salt.
Add the cooked potatoes, maize, and green peas to the skillet. Mix well.
Cook the mixture for about 5-10 minutes, allowing the flavors to meld together. Adjust seasoning if necessary.
Garnish with chopped fresh parsley or cilantro.
Enjoy your meal!