Almond flour and ground almonds are not the same thing and although some recipes might work with either they won’t all work. Almond flour isn’t available in everyday shops I buy it online and it is quite expensive, it might be available in local health food type places.
I’ve not tried the courgette muffins the recipe didn’t appeal to me, but I am one of those people who enjoys the challenge of seeking out healthier alternatives to the old things I liked. I know for some it can set off cravings but for me I feel in control and at ease with controlling my portions and only eating what I’ve planned.
this is the cheapest place I’ve found to buy almond flour (I’m in UK)
http://www.realfoodstore.co.uk/gluten-free-flours/
this website has some amazing recipes
https://elanaspantry.com/
I recommend the silver dollar pancakes in particular (they freeze well) and the cracker recipes. I make a batch of crackers most weeks and use them for my lunch at work with cheese and salad. At the end of the week I mash the crackers up and use them to coat fish or chicken as a breadcrumb substitute, it works very well and even my kids eat them.
I’ve tried a few more of her recipes and most have turned out well but you do have to watch for calories and portion sizes. It isn’t cheap to follow some of these recipes that is definitely true, however I justify it easily in the knowledge that I no longer buy any sandwiches/crisps/chocolate/general rubbish either at work or otherwise. I’m not out of pocket buying the expensive ingredients when I compare what I used to spend. This is an investment not only in my own health but in the health of my family.
Finding healthier pancakes etc that my kids also enjoy is better for them too.