1-First Step: Preheat your oven to 425°F (220°C) to get it nice and hot for even roasting, which helps develop those appealing brown spots on the asparagus.

2-Second Step: Wash the asparagus thoroughly under cool water to remove any dirt, then stack the bunch and cut off the tough bottom inch for tender results that cook uniformly.

3-Third Step: Spread the prepared asparagus in a single layer on a rimmed baking sheet and pat it dry with a paper towel to prevent steaming and ensure it roasts instead of steams.

4-Fourth Step: Drizzle the asparagus generously with 4-5 tablespoons of olive oil, and if you choose, add 2 tablespoons of melted salted butter for extra richness; this step coats the spears evenly for flavor and helps with browning.

5-Fifth Step: Sprinkle kosher salt and freshly ground black pepper to taste over the asparagus, adapting amounts based on your diet use less salt for low-sodium needs to keep it heart-healthy.

6-Sixth Step: Place the baking sheet in the preheated oven and roast for 10 minutes, checking for crisp-tender doneness with those browned spots, which might take less time for thinner spears to accommodate various textures.

7-Final Step: Remove from the oven and optionally sprinkle with grated lemon zest for a fresh finish before serving; this adds a zesty lift and makes the dish versatile for meals, like pairing with proteins for busy parents or as a light option for diet-conscious eaters.