Preheat your oven to 425°F for roasting the asparagus.
Rinse the asparagus and trim the tough ends. Toss with 1/2 tablespoon of olive oil, salt, and pepper, and arrange on a baking sheet.
Roast the asparagus in the oven for 12-15 minutes until tender and slightly charred.
While the asparagus roasts, peel and devein the prawns if needed. Pat them dry with paper towels.
Mince the garlic finely and squeeze the juice from half a lemon.
Heat the remaining olive oil in a large skillet over medium-high heat.
Add the minced garlic to the skillet and sauté for about 30 seconds until fragrant.
Add the prawns to the skillet and season with salt and pepper.
Sear the prawns for 2-3 minutes on each side until they turn pink and opaque. Pour the lemon juice over the prawns during the last minute of cooking.
Plate the roasted asparagus and top with the pan-seared prawns. Drizzle any remaining pan sauce over the top.
Serve immediately and enjoy your vibrant, protein-packed meal.