I like having a healthy blend of carbs, protein, and fat.
Breakfast:
Scrambled eggs, whole wheat toast, protein shake, flax oil.
Sometimes, I'll have oatmeal (not the instant kind) instead when I'm lazy.
Also, supplements:
fish oil caps, multivitamin, caffeine.
I've experimented with some other supplements for exercise reasons. Citrulline malate is amazing for energy and mental focus among other things.
If you are seriously into lifting weights, you learn to eat very well. That carries over in terms of energy, etc., into other things.