Strolling through the aisles of my local health food shop the other day I came across puffed buckwheat. It costs about £2.69 for a 200g bag which is not cheap but not astronomically expensive either.
Buckwheat is not related to wheat but related to sorrel and rhubarb. It is not a grass but a pseudocereal and is rich in carbohydrate but low in fermentable carbohydrates known as FODMAPS. The seeds are a curious triangular shape and resemble beechnuts. Buckwheat is also gluten free.
Buck wheat is also a good source of potassium, protein, iron and vitamin B6.
I tried the puffed buckwheat with milk (of your choice) and berries and can really recommend it. I think it might be nice in a breakfast grain mix with oats and nuts to make it a little more filling or a biscuit mixed with syrup, nuts and chocolate chips. I will experiement when I have a moment. But for now they are just an idea for an alternative breakfast.
Have a good weekend.