the Rafferty's garden fruit and veggie tubes - zero additives and colours -

can your child handle thinly sliced up apple? drizzle a little lemon juice over it, to stop it going brown in the car trip.

i use little plastic airtight boxes (like i had for individual baby serves of frozen food when introducing solids).
i fill those with snack amounts of normal food (not individual packaged in factory). Saves money, packaging etc.

a rice cake sandwich - with a cheese slice and vegespread inside it (vegemite has additives).

Prima juice cartons - they only have 25% fruit juice in them. i put them in a DWINK holder, that stops the child squeezing the juice carton. I am happy to say we have never had any spilt juice in the car - due to teh DWINK holder, i'm so impressed with those. Before we got that, i would only allow her to have water in the car (just in case).

i also use the Foogo straw drink bottles for car trips - they keep the water cool for up to 12 hours. So no matter how long my child leaves the water bottle, when she comes back to it, the water is nice to drink. We get heatwave conditions of 45 degrees here (and much higher than that in the non-AC car, always parked in full sun - argh) so having the water kept cold, is a big help.

i keep my child's snacks in a cooler bag, - with an ice brick in it - and pass her one snack at a time.

I don't know how to bring up the subject of the Milky Way, without sounding offensive (and i have no wish to offend anyone) - i'll just say, it's really important to brush a young child's teeth, no matter how young they are. Virtually every toothpaste you buy in a supermarket has SLS in it (to make it froth, no other reason). We've been using Weeleda children's tooth gel - to avoid the SLS.