Chop herbs, zest lemon and squeeze juice, add all to small bowl with mustard, oil, and salt & pepper. Toss shrimp in marinade and place in fridge for about 20 min, while you get your grill good and hot. If you don't have a grill pan you can use skewers or throw directly on grill (be careful they may stick or fall through the grill grate. Flip shrimp as soon as they start to turn pink. This will only take a min or two. That's it! Emjoy!