Cook the potatoes in water to cover until just ender, about 5 minutes. Drain and set aside.
Place the onion and green and red peppers in a saucepan with a small amount of water. Cook, stirring frequently, until just tender, about 4 minutes. Add corn and cook 1 additional minute. Remove from heat. Add the cooked potatoes, poultry seasoning, fresh parsley or cilantro, and pepper. Mix well.
Place the mixture in a large nonstick skillet. Cook, stirring frequently, over medium heat until the potatoes brown slightly, about 10 minutes. Serve with your favorite salsa or barbecue sauce.