I'm the same as Can't, I fed DS whatever we were having, and if I didn't have time to cook on the day, due to getting home from work late, then he'd have it the following day. This would be supplemented by a stock of home prepped veg purees from the freezer, I'd mix and match them to make 'interesting' combos - like parsnip and apple.
Also, you can buy the quick cook pasta, it only takes three minutes to boil (at least the tesco one does) and you can serve it 'dry' (but cooked obviously!) as a finger food or with a sauce.
Boots stock a range of the Annabel Karmel foods, which include a baby rice (not the stuff you wean with, actual small grains of rice) and baby pasta which are good for littleun's not so ready for chewing.
Cucumber sticks, appple sticks, celery, all only take seconds to prepare and are great 'finger foods'. I've always tried to stick to the five a day as a minimum rule - although it does get a bit inventive sometimes! Raisins with your sandwiches DS?
I used to give DS pre-prepared food all the time, until I read a comment on here somewhere about it seeming a bit mean to give the kids pre-prepared then sit down to a meal of meat and veg after they'd gone to bed. That's when I realised I wasn't putting in nearly as much effort as I could with DS' diet and I think since I did start investing more time in it, his eating habits have improved - and its rewarding to see him in the kitchen (as he was last night) helping himself to the cucumber that was on his plate, waiting for the pasta to be added.
I got really stuck for inspiration so bought for inspiration.
It breaks down the recipes into age appropriate sections, I had no clue how to cook meat so it would be suitable for pureeing - but this book shows you how, with really simple recipes. If you look on Amazon, they have a 'look inside' feature for this book so you can have a 'try before you buy'.
Sorry for the massive ramble, HTH a bit?