- Preheat oven to 400ºF. Line a large baking sheet with aluminum foil or parchment paper. Wash and scrub sweet potatoes. Using a fork, poke sweet potatoes all over and place on baking sheet. Bake for 50-60 minutes or until sweet potatoes are tender and easily pierced through to the center with a fork. Cool at room temperature while preparing filling.
- Heat oil over medium-high heat in a large skillet and add diced chicken. Brown for 5-6 minutes, stirring occasionally. Reduce heat to medium. Add broccoli, bell pepper and mushrooms. Continue to cook for 5 minutes longer.
- Stir together teriyaki sauce, water, garlic, ginger and cornstarch in a small bowl. Add baby corn to skillet and pour in sauce. Stir well to incorporate sauce and simmer for 5 minutes longer.
- Slice sweet potatoes in half lengthwise and scoop out the center leaving skin intact and about ½ inch of sweet potato flesh around the edges. Spoon stir fry into sweet potatoes and top with cilantro and sesame seeds.