The phrase "little taster" refers to a small portion or sample of something, usually food or drink, that gives you a preview or idea of what it tastes like. Full definition
I seem to be reaching a wider and growing audience and have given little taster peeks at new work that I have started, showing progress and giving a deadline date when the final work will be revealed. (theabundantartist.com)
I made it last week for lunch, it's really tasty and nutritious and the babster loved it, I gave a little taster bowl to my eldest daughter (who's 7) and she didn't like it, I can't really expect her to as I've never gave her chicken liver, so it's not a flavour she's used to (the dish isn't overly liver tasting anyway — if that makes sense). (anniesdorsetkitchen.com)
This will give you a little taster of what you can expect in her new Vitality Series, where she supports you toward achieving better hormone balance! (nourisheveryday.com)