Heat remaining oil in same skillet. Add onions, garlic, ginger and crushed pepper; cook and stir 1 min. Add sweet peppers; cook and stir 4 to 5 min. or until crisp-tender. Return tofu to skillet along with the dressing mixture; stir. Bring to boil; cook and stir 2 to 3 min. or until sauce is thickened.