Need Advice Please on baby's food!!

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So my son is 8 months old and I'm a first time mum so I'm just a little confused and hoping some other mums who have done it will be able to shed some light. So his food schedule is as follows:

7am 8oz bottle follow on milk

11am lunch usually either bowl of porraige or Weetabix or banana and egg pancake or banana and full fat Greek yogurt and he will have some finger biscuits or carrot puffs after and baby juice. He eats a lot decent sized portion to the point where I can tell when he gets full as he slows right down etc

3pm Tea usually either scrambled egg and some toast bits some defrosted mango chunks for after or sometimes some sweet potato or carrots to finger food etc again what ever I give him at tea it's a healthy size and some rice pudding pot for afters or like I said the mango.

7pm last bottle 8oz again then straight to bed.

Now my main questions are these at 8 months old should he be having more than two big meals a day?? And if so how should I fit that in?? And also my MAIN question last night my dad baby sat whilst we went out for dinner when I came home he said I'm sure he wants more than 8oz bottle because he did 8 and then he polished it off and was wide awake still and was still sucking for more so dad made up another 2 Oz so he had 10 in total and he said after the extra 2 which he also polished off he was gone all sleepy and relaxed etc. Now is 10oz too much for an 8 month old in one go? Would he be ok having two 10oz bottles a day if it satisfies him more? Anyone have any advice on this. Thanks. Also he's always slept through the night even with 8oz before bed! He sleeps 7:30pm until 7am x