Girls, hello everyone! The pediatrician said to start introducing soli…

Girls, hello everyone! The pediatrician said to start introducing solids, so I started making mashed potatoes according to the instructions - 150 ml of water, 3 tablespoons of mashed potatoes, and gave one teaspoon each day. Now we're up to 10 teaspoons, and I think the doctor said to give different vegetable puree every day, but I read that some people give one puree for a week, how did you introduce solids?