I always go with the Following Mix for a Post Work out Shake:

2 scoops Isopure (Chocolate)
2 scoops Nitro Tech (Chocolate)
2 scoops GNC Weight Gainer (Chocolate)
2 tsp Flaxseed Oil
2-3 cups of Milk
1 table spoon of Peanut Butter
2 cups of Low Fat Frozen Yougert
1 teaspoon of Glutimaine

DONT TRY TO MIX THAT ALL AT ONCE. A buddy of mine did and it fried his blender, hahaha. Anyways, there is WELL over 150-175mg of Protein in this drink. And it tastes just like a choclate shake. Oh yea, I also add chocolate syrp too.