Hello everyone! We'll be introducing solids in a month and here comes…

Hello everyone! We'll be introducing solids in a month and here comes the question: how do we introduce new products? It's clear that we should start with small portions and gradually increase the dose. For example, we introduced the first vegetable, then added the second one, but it seems like we shouldn't mix them up, right? We're already eating, say, from a spoon. Anyway, should we still introduce another vegetable with a small dose and not overfeed what we're already eating? Or should we use a teaspoon of one puree and the rest of the portion of another? The question might seem silly, but please advise me ? And I'm curious who started feeding solids when and at