Use any. "That's good. Do you have any eggs or meat?" You could also not use "any" and just say "Do you have eggs or meat too?" But, notice that I added the "too". It would sound a bit odd (in this situation) if you said "Do you have eggs or meat?". Although this is a completely grammatical sentence, it sounds odd without "too" because it sounds like the person wants to ask "Do you have eggs for breakfast, or do you have meat for breakfast?", and you would have to answer either "I have eggs", or "I have meat". I hope that makes sense to you.