When we wake up in the morning, our body needs something light, clean and full of energy.. So it's better to start the day with some simple food..
Here are few things which you can consider :
Warm water with lemon : it will clean your stomach and helps with digestion.
Banana or few soaked almonds : provides good energy and are easy to eat.
A simple fruit : like apple, papaya etc.. Don't go for sour fruits.
Coconut water : you will feel fresh and it's good for body..
Many people takes coffee or tea as soon as they wakeup.. That's not suggestible.. First take a simple food and then you can have tea or coffee.