Personally, I eat oatmeal every day.
Oatmeal with
▪ Raisins (or blueberries or stewed apples)
▪ Flaxseed (about 1 teaspoon)
▪ Pumpkin seeds (1-2 tablespoons)
▪ Pecans
▪ Soymilk (or milk)
It might not sound like much, but I haven't gotten bored of it after more than a year. On occasion, I have used peaches, strawberries, or mixed berries instead of raisins. On rare occasions (when I have a sweet-tooth), I will add a bit of jam or honey.
If you've found a good low-B6 breakfast, please leave a comment below and let everyone know what it is! If enough people answer, then eventually we should have a long list of meal ideas.