COMBINE 2 Tbsp. of the dressing, the lemon juice, garlic, salt and pepper. Pour evenly over fish in shallow dish or bowl; let stand 5 min. Remove from dish; sprinkle both sides of fish with flour.
HEAT remaining 2 Tbsp. dressing in large nonstick skillet on medium-high heat. Add fish; cook 4 to 5 min. on each side or until fish flakes easily with fork. Remove to serving platter; cover to keep warm.
ADD onions and almonds to skillet; cook and stir 2 min. on medium heat. Stir in wine; cook until heated through, stirring occasionally. Spoon evenly over fish.