Hi,
Firstly - DO NOT FEEL GUILTY!!!! Every now and then things like this do happen and you are very aware of it so there is no point kicking yourself over it. I know it sounds obvious and difficult not to feel bad but please don't as it is over now.
I had a very similar incident in the first months of starting solids (I think it was about 8 months) and I ended up just dropping the plate on the ground and yelled FINE DONT EAT IT - of course as soon as I yelled I knew it was wrong and felt AWFUL especially as he was so shocked as I have never yelled before. I can tell you it has never happened again - but I did get frustrated after that but we now do the following; I hope this will help you - it may not but you will receive lots of good advice from several people may be something will work for you.
We now feed David (11mths) in a stand up play pen as we had HUGE problems with the high chair and him refusing food - he hated it (I will attach a photo of it for you if I can find one - it looks like a walker that dosent move and has toys all around it) and he plays with all the toys attached to the play pen and whilst he plays I stick whatever I want in his mouth and he eats it as he is more entertained by the toys he dosent really take notice of what he is eating. Diversion
Sometimes I will even sit on the floor and follow him around with the food and while he plays I stick some in his mouth - I know this sounds silly but it really works for us. We dont have a set 3 meals per day - I just try feeding all day (usually 5 meals a day) when he wakes up.
Because we dont make a big deal about eating - it is a much more relaxed household - and it is easier to feed them.
I wouldnt suggest taking yoghurt etc... off him - anything they eat is good. Can I suggest items like creamed rice (I have a GREAT recipe if you like) that is good for them and a little sweet, my DS LOVES IT and it will fill him up. Also things like sweet potato or mashed pumpkin, or grapes etc if he has a sweet tooth or things like creamy pasta?
Also sometimes bubs wake at night and slow down the eating when they are reaching different milestones or teething - so dont worry too much it is most likely a phase.
Anyway - I hope some of this helps if not hopefully just knowing people are here supporting you might make you feel better.
Please keep in touch - and you are very welcome to PM me - I get bored sometimes (stay home mum) and love getting mail
Will wait to hear from you, good luck and HUGS!!
Melissa