Wholegrain foods are generally avoided whether Lo is weaning with BLW or the more traditional puree route. The reason is that it will fill them up too much and they will/may feel less hungry to take their milk or take more/variety of solids to gain enough nutrition (the milk is more important at this stage but later on the variety of foods could be limited by LO being full on whole grains).
meat is fine, minced, meat balls, large chunks of roasts or stews etc. Sometimes they will just suck and gum at the strips or hunks of meat rather than bite pieces off.
I would suggest banana bread without the sugar.