Preheat oven to 400
Arrange spears in a single layer on a baking sheet; drizzle with olive oil and toss to coat. Sprinkle with salt and pepper. Bake for 12 minutes or until tender
Melt butter in a small skillet over medium heat; cook 3 minutes or until lightly browned, shaking pan occasionally. Remove from heat; stir in soy sauce and balsamic vinegar. Drizzle over asparagus, tossing well to coat. Garnish with cracked black pepper and lemon rind, if desired.
Serving size about 5 spears: 45 calories, 3g fat, 1.9g protein, 3.9g carbs, 1.7g fiber