I have the Omega Vert juicer, I peel the orange and plop it in there seeds and all. It'd take way too much time to get all those seeds out.
There is no need to peel the carrots, just scrub them and juice them.
I don't core the apple or take the seeds out. There are different schools of thought on the seeds of an apple. Most people say you need to remove them because they're poison but I watched a video of an Omega demo and they just cut the apple in 3 sections and juiced the whole thing. They didn't core it nor did they take the seeds out. I think that the tiny amount of seeds isn't enough to worry about and since I've juiced many apples and I'm still up and walking around lol I think its okay to not remove them and it sure is much faster lol!
I'll let someone else answer the lunch question but if I had to take a lunch I'd eat fruit or take some pints of juice because its easy lol.