I am obsessed with coookbooks for babies and children, so you are asking the right question for me! I have found several which I love, and most of them are designed to be fairly quick and easy, which is essential to busy moms. I am also not a gourmet chef - just a mom who wants to make healthy food for my children. With the exception of 1, all of these books feature foods for babies and toddlers on up.
Fresh Start Cworkbook: This is a very basic guide to making and freezing baby food using your food processor and your Fresh Baby food cube trays, which you can buy online or at a health food store. Very basic and straightforward, and solely for baby purees.
Annabel Karmel Superfoods and First Meals: Love both of these books. THey have a few of the same recipes, but most are unique to each book. Most of the recipes involve a bit of prep work, but they are all very easy and uncomplicated. As she is British, some of the terms are a little different, and some of the recipes are not super specific (like she doesn't tell you how high the heat should be on the stove, for example) but I've tried several of her recipes and they've all turned out well except 1. SHe has some recipes online on her website, so you might want to check those out first. I just made the yummy Bolognaise sauce with hidden veggies.
Healthy Foods for Babies and Kids: Rachael Ann Hill: Love this book, which features lots of great pictures and easy recipes. However, it's also British, so you might not recognize a couple of the ingredient names. Everything is available here, though.
Petit Appetit and the Baby Bistro Cookbook: A little more gourmet-ish, but still very easy and doable. The emphasis on these books is very much on organic and healthy food. Some of the recipes have been really good, but some of the cookies in Petit Appetit haven't gone over too well with my babies.
Deceptively Delicious and The Sneaky Chef: These are the cookbooks where you add secret veggies to normal foods. Once you have a couple of purees (or use baby's food) the recipes are super easy and quick, and you can learn to add veggies to your other meals too.
The Big Book of Recipes for Babies, Toddlers and CHildren: Love the binder format of this book, and it features hundreds of super simple recipes. Some are very basic, like tuna sandwiches, while others are more creative. Also by British authors.
Hope this helps!