Forget the ready made shakes unless you are in a pinch, because they are all lacking in various types of BCAAs. Ideally, you should be having a post-workout shake that contains whey protein and a fast digesting carb. For this reason, a protein shake of whatever flavour with a banana mixed in is a great first option. You'll have to examine your own workout regime to determine the right balance of nutrients, calories, protein and carb content to suit your needs.
However, as a meal replacement, look for 1% lowfat chocolate milk. Because it possess complex carbs, you'll get a drink that is rich in BCAAs and it's miles cheaper than any fancy labelled stuff. Eat a banana with it or if you need more protein, try a crunchy peanut butter sandwich on whole wheat with sliced bananas to compliment your chocolate milk. Again, the amount of calorie intake, protein, etc. is for you to determine.
Look for Mootopia found at HEB, since it is infused which a higher protein content than regular 1% chocolate milk. Or you can just use the HEB brand 1%. It's tough finding the gallon variety, but half gallons and quarts should be no problem. Besides, it buries the MM in price and taste.
