Savings Association Law Enforcement Improvement Act of 1990 - Directs the Attorney General to: (1) take action to increase the investigation and prosecution of savings association criminal misconduct; (2) take increased action to recover or obtain restitution for losses incurred as a result of savings association fraud or embezzlement; and (3) make quarterly reports to certain congressional committees on the status of savings association criminal investigations and prosecutions and the progress in recovering amounts lost to fraud and embezzlement.