Wash asparagus under cold water. Cut off an inch (or more as needed) of the bottom of asparagus spears.
In a small mixing bowl mix olive oil, salt and pepper until well combined. Coat asparagus spears with marinate mix on each side and let sit for 5-10 min
In the meantime, turn on your grill (we use portable Tefal grill). Once preheated, place asparagus on grill and cook until desired tenderness is reached. Turn around asparagus spears to grill on each side (approx. every 3-5 min).