If six-month-old doesn’t eat purée, do you replace with something else?

So I just started my six month old on purées and some days she won’t like the specific purée and will only have a taste. Do I need to replace that meal with another purée so that she has solids for the day or is milk enough for that day is it like skipping a meal if she doesn’t eat that day’s purée or is the whole point just to introduce them to ingredients?