Prepping your meals is one of the most important thing that any bodybuilder, or anyone who takes their fitness seriously, can do. Fail to prepare and prepare to fail. If you prepare your meals in advance, you know exactly what you are eating every meal. This makes it simple to track your macros and manage your caloric intake.
IFBB Pro Renaldo Gairy shows us how he makes his pre workout chicken, rice and vegetables pre-workout meal. There are lots of great tips in this one. While I love fresh vegetables, it is hard to argue with the ease of using frozen stir-fry vegetables.