I’ve eaten leftovers and often I don’t have “breakfast” until lunch so I’ll have lunch, like a sandwich. I don’t think I could stomach spicy foods but the idea of putting hot sauce or salsa on eggs doesn’t bother me and I’d done it when feeling adventurous.
I actually can’t eat when I first wake up, I have to have coffee first or eat something small, like toast, while I drink my coffee.
A particular set of foods frequently incorporated into breakfast (in western cultures anyway) are all things I hate and would never eat anyway. These include:
Bacon (I hate all pig-meat. Not a religious thing, I just hate the taste of anything piggy)
Eggs in any form
Coffee
Orange Juice
Yuck yuck yuck. Even the smell produced by the first three makes me feel nauseous if I experience it soon after waking up. Also, I generally won’t eat meat for breakfast but have made the occasional exception for chicken.
Otherwise, anything else is fine, traditional breakfast food or no.
Hokkaido Brit nailed it. Natto is number one on my list of breakfast foods I will not touch. shudder
Surprisingly enough, I couldn’t manage the traditional breakfast of chocolate y churros in Spain. Apparently, there’s something about the combo of cloying sweetness and greasy carbs first thing in the morning that turns my stomach (though churros dunked in cafe con leche is a different story altogether).
Just give me a giant plate of fried eggs with hash browns, sausage and/or bacon, and I’m a happy camper. Nom nom nom.
When I was a kid we used to have rice for breakfast, not with natto though (sounds icky). If we had leftover plain rice my mom would warm it up with milk and we’d add butter and sugar and eat it like cereal. We are not Asian in any way. I think we had this because my mother hated oatmeal, her mother never got the hang of cooking it so my mother hated it. We’d either have rice or cream of wheat for hot breakfasts.
I suppose it’s partly down to habit and custom.
Another thing I really couldn’t handle for breakfast would be wine. Red wine particularly. A crisp white might be refreshing - but not red. I love it in the evening, but first thing in the morning: bleaghh!
I don’t eat breakfast, but, if I did, it would definitely be either fresh fruit or something savory, not sweet.
I know I’m the Lone Ranger on this, but I had my first “pizza for breakfast” experience recently. It was oddly seductive…
I cannot think of a single thing I have eaten for breakfast that I won’t eat any other time.
Reheated onion rings and bleu cheese?
Check
Fancy garlic stuffed olives and a hunk of cheddar?
Check
Orange juice…even fresh squeezed. It’s just too acidic and gives me a stomach ache. I drink spicey V-8 every morning instead.
In college, when I was able to sleep in until 11:30a.m. most days, my first meal would usually be a hoagie or some other dinner-item leftover.
I remember once in junior high when I ate baked ziti for breakfast before school. Prior to this, it was just normal cereal. Anyways, I went on to play extraordinarily well in the soccer game after school, garnering praise from teammates, coaches, parents, and even opposing players. Sure, the breakfast probably didn’t influence my game play that much later, but I never ate ziti as my first meal ever again, and I never played soccer that well ever again.
Eggs. I hate them, and only bake with them. No breakfast sausages either.
Garlic and onions. Only because it would make my breathe stink for the rest of the day. Otherwise I don’t subscribe to the idea that there are specific breakfast foods.
Of course there are other foods I wouldn’t eat for any meal.
I can’t handle anything but coffee until about 8:30 or 9:00. After that, I’ll eat just about anything from sushi to sausage. I don’t like cereal, but I’ll eat it if I’m in a hurry or there isn’t anything else. My main problem isn’t the taste, it’s that, if I eat cereal, I’m stomach-rumbling ravenous an hour later. Oatmeal does not stick to these particular ribs.
If I’ll eat it in general, I’ll eat it for breakfast.
I ate leftover lasagna for breakfast this morning.
This thread reminds me to pick up some natto at the Japanese supermarket this morning. I love that stuff for breakfast!
I can’t eat anything sugary at breakfast. Nor, for that matter, at any time, but for breakfast it would make me crash soon afterwards and then feel ravenous. I have to have a bit of lean protein and maybe some fruit. If there’s a bit of leftover steak or pork chop or shrimp from the previous night’s dinner, that’s ideal.
About the only thing I wouldn’t eat for breakfast - in fact, the first thing that came to mind when I saw the title of this thread - is fish. Now, I don’t care for or eat fish anytime, but the idea of smelling it in the morning and eating it for my first meal of the day is so not appealing.
I like a good, messy breakfast burrito (over cooked eggs, cheese, bacon, potatoes) with a bunch of hot peppers.
Soup. Salad. Nachos/quesadillas. Stuffed cabbage. Goulash. Peas. Pork rinds. Jell-O. Barbecue. Beer.
If they’re cooked any more, how else can you dunk black pudding into them? 
I’ll eat anything for breakfast - except cold cereal. Dry cereal is acceptable as an occasional snack. Cereal soaked in cold milk, first thing in the morning? Blecch.
I ate curried potaotes and veggies for breakfast most mornings at one of the offices I used to work at, and was regarded as a total freak for quite some time. I thought I was a “anything that’s food, is good for breakfast” person, but when I read NineToTheSky’s post I realized I never drink wine, or anything alcoholic, before brunch (10-ish).