If you have never eaten buckwheat yet, you could try it.
In this recipe it is used in its sprouted form, but you can also cook it.

The name buckwheat is somehow confusing, because it is not really among the grains. It does not contain bran and germ, but it tastes quite like a grain. You find 15 – 20 % of protein, a good amount of fiber, B vitamins, potassium, iron, calcium, manganese and phosphorus in it.

So if you have some trouble digesting wheat or oats, buckwheat could be a good alternative.

Buckwheat Breakfast Bowl (raw)

1/3 cup Buckwheat (soaked over night for 30 min)
1 Cup Milk (I used hazelnut milk)
1/2 Apple
1 Banana
Raisins
Mulberries

Slice the apple and banana into bite-sized pieces. Combine all ingredients and enjoy.