Am new to this weaning business, so sorry if I'm going over old ground 
DS is almost 7 months, and in addition to a minimum of 20 oz of formula each day, he also has
Breakfast-half a weetabix or porridge with whole milk. Possibly a petit filous yoghurt if he still seems hungry
Lunch-today for example he had half a banana, a cheese triangle, and a yoghurt
Dinner-at least half, sometimes a whole pouch/jar of baby food, another yoghurt.
I have no idea if these quantities are too much, too little, or just right. Could anyone advise please?