Speaking of pre-planning, I have been buying a bag of baby spinach and when I get home from the store, cutting up a green pepper, an onion, and sometimes a zucchini. Then it's super easy to just grab a handful of the veggies, throw them in a skillet with pam, and scramble an egg in it. I eat it in 1/2 a whole wheat pita, throw in some fruit or a yogurt, and its a super satisfying 5 minute breakfast!
The pre-chopping makes all the difference, because there's no way I'd do the chopping every morning. I also use the veggies in a bunch of different ways throughout the week. Makes it easier to try to sneak them in wherever possible!
Good luck!