Cover ribs with cold water; bring to boil and simmer 10 minutes. Drain; rinse ribs in cold water. Place in roasting pan; sprinkle with salt and pepper.
Bake in very hot oven (450°) 15 minutes, until lightly browned. Pour off fat.
Drain pineapple, reserving juice. Add pineapple chunks and peppers to ribs. Bake 10 minutes.