Stick with the scrambled eggs 
You can always ask how they are prepared, what you want is either with some added milk, or nothing added at all.
Some places add lots of cream, then its best to avoid. But either way, its not gonna kill you and generally good source of good fats and protein. 3 eggs are a good balance per my coaches.
Regarding the potato and brown rice. Like other have said, lots of fibre in brown rice, but potatoes are a good source of carbs as well.
If you have a workout that day, I would eat some potatoes since you’ll get more carbs in, but if you have a day off, some brown rice with lots of fiber can be good!
Its all about moderation, but if you are training, all 3 of those foods are very safe foods to have quite a lot of, since they are of good quality (if they don’t have lots of fats added…)