Using fresh, simple ingredients, this healthy, flavorful entrée takes less than 20 minutes to prepare.
Whisk first 7 ingredients in a small bowl. Slowly pour in the olive oil, reserving 1 tablesppon, while whisking to emulsify the vinaigrette. Stir in jalapeño and herbs. Salt and pepper to taste. Set aside while preparing fish.
Prepare grill (medium-high heat). Brush fish with olive oil; sprinkle with salt and pepper. Grill until just opaque in center, about 4-5 minutes per side. Transfer to plates. Top with the vinaigrette and serve.