Preheat oven to 400 degrees F.
Coat chicken: Cut chicken breasts into 1-inch chunks and season with salt and pepper. Place the cornstarch in a large resealable bag; add the chicken pieces and toss to coat the chicken evenly.
Dip chicken:Heat the oil in a large skillet over high heat. In a shallow bowl, beat the eggs together. Dip chicken pieces in beaten eggs and place on hot skillet
Cook: Add chicken pieces to hot pan (may need to cook in batches) and cook for about one minute on each side, until golden and crispy, but not cooked through.
Bake: Add chicken to a large rimmed baking dish and bake at 400 degrees F for 12-15 minutes or until chicken is cooked through.
Veggies: Meanwhile, add the bell peppers and onion to the skillet and sauté for 2-3 minutes. Add pineapple.
Sauce: Mix the sauce ingredients together in a bowl then pour into the skillet with the veggies. Cook, stirring, until thickened.
Serve: Remove chicken from oven and pour sauce and veggies over the top. Toss to coat. Serve immediately with hot steamed white or brown rice.
