I'm not the smartest with diet by any means, but I know what works for me, and with no scientific backing. What I do, usually 1.5-2 hours out I have a big meal. Sweet potato or pasta and some sort of meat. I feel better with a solid meal. Maybe 45 minutes out ill have a scoop of protein if I'm hungry and maybe something like dextrose. Gatorade is flavored with dextrose but you can also get straight dextrose powder for dirt cheap. I also sip on Gatorade through my workout. Some people lift completely fasted though and feel great, which does not work for me. Make sure you're well hydrated as well. If I work out in the morning then I make sure I'm well hydrated the night before. If I had your schedule I'd eat a big solid breakfast of whole foods, then something small and light Prewo.