Heat oil in a large skillet over medium-high heat. Add onion, red bell peppers, and green bell peppers. Cook for 2 minutes. Stir in jicama, hot pepper sauce, garlic powder, parsley, paprika, salt, and black pepper Mix until jicama cubes are evenly coated.
Cook vegetables in the skillet for 5 minutes without disturbing. Flip and cook another 5 minutes undisturbed. Flip one last time and cook to desired crispness, about 3 minutes more.