Breaking the fast. As you are aware breakfast is the most important meal of the day and sets the tone to have a good day. Within your weight loss, or cutting phase, you don't want to add fats or carbs just yet as you want to stay in a fasted state for longer, but you need to have a couple of calories for energy, by going pure protein only, your body will go to your fat reserves first to burn energy, and by not having carbs in your first meal (if you are not very mobile) you still get to lose body fat and lose weight. Your body will burn carbs and fats first for energy before it uses protein.
Breakfast on the go choice,
Make yourself an egg white omelette, order it at a restaurant or get yourself a Whey Isolate (Lactose Free Shake - 2g Nett Carbs.