Preheat oven to 400°F. Line a baking sheet with aluminum foil, & spray with non-stick cooking spray.
Coat a small saucepan with nonstick cooking spray. Over medium heat, cook & stir garlic until soft, about 3 minutes. Mix in white wine, honey, balsamic vinegar, mustard, & salt & pepper. Simmer, uncovered, for about 3 minutes, or until slightly thickened.
Arrange salmon fillets on foil lined baking sheet. Brush fillets with balsamic glaze, & sprinkle with oregano.
Bake in preheated oven for 10-14 minutes, or until flesh flakes easily with a fork. Brush fillets with remaining glaze, & season with salt & pepper. Use a spatula to transfer fillets to serving platter, leaving the skin behind on the foil.
Serve one fillet on a bed of steamed rice with some lightly sautéed vegetables (good with asparagus & green beans) on the side.