Set something up the next week is fine, but leave it alone as best you can. Breakfast shouldn't suck... I had a tooth break and I never went to the dentist... doesn't hurt, and it didn't hurt then either.

breakfast is gonna suck ass if only for the annoyance. The smallest bit of food in there and your tongue will be determined to remove it. It shouldn't hurt, though there's a chance of some mild pain if there are any exposed nerves.
The upper right wisdom tooth for me snapped so that 1/4 of the tooth was just GONE randomly. oddly enough that actually STOPPED the pain I was having so I never bothered getting it fixed. It's been a couple of years now but my tongue still prods it.

I definitely would not keep poking it. If a tooth breaks, it probably means that it could be prone to breaking even more. Although i'm surprised (and relieved to hear) that it doesn't hurt, at the very least. Just hope you end up going with something soft for breakfast, like oatmeal or pancakes.