In a shallow bowl, combine flour and cornstarch. Dip fillets in flour mixture. In a large nonstick skillet, cook salmon in oil over medium-high heat for 4-6 minutes on each side or until fish flakes easily with a fork. Remove and keep warm.
Add sherry, stirring to loosen browned bits from the pan. Stir in the remaining ingredients; cook, stirring occasionally, for 2 minutes to allow flavors to blend. Serve with salmon.