My autistic son is very very similar with foods but we’ve finally gotten to a point where he will eat a good range of foods now some tips I would recommend:
-always offer safe foods for every snack/ meal
-where possible also offer a tiny portion of something else/ whatever your having for example, absolutely no pressure. Most of the time my son flicks it off the plate but sometimes he will sniff or lick it and very occasionally will try it. Put it on a different plate nearby if necessary.
— Have a real think about the kind of textures and colours your daughter likes, for my son this is crispy beige stuff, he hates anything with a sauce. So for example we have tried my son with things like dried coconut flakes/ dried apple crisps etc and they went down really well and I think it’s because they look very similar to the kind of foods he already eats. He now also eats fresh apple which has been a huge huge win for us.
-when my son started becoming slightly more adventurous I’ve branched out with trying to make more homemade snacks like oat bars, muffins, cakes etc a lot things have been a fail but most of the time he will enjoy these things now and I know what’s in them which is a bonus. He really likes jammy dodgers too so I’ve been making a jammy dodger style oat bar and he’s been loving them recently.
-my son really likes pizza so I often make things into a pizza like meal so for example if I make bolognese I will put some on a tortilla wrap with some grated cheese and cook in the oven until crispy, I never lie to him and say that it’s pizza when it’s not & I’m always honest about what it is but it’s worked really well for us as he just likes that familiarity.
-magnesium supplement (I don’t know if it’s coincidental but he has been much more relaxed around food since starting this and just more chilled and regulated in general) we get a gummy style one along with his multivitiamin and he happily eats them because he thinks they are sweets.
-I buy a superfood boost pouch from the baby section at Tesco and I literally just add a spoonful into everything I make for the kids, basically anything you can add in to boost the nutritional value and calories is worthwhile doing so long as it doesn’t impact taste and texture too much.
—my son does have learning delays but really loves cooking and baking and watching that process and I’ve found he is more willing to try things if he’s helped make them or even if I just show him what I’m doing so for example I made sausage rolls yesterday and showed him them before they went in the oven and he enjoys listening for the timer and then seems more excited to try them.
I don’t believe my DS has Arfid but he does have a lot of sensory issues around food but these things may not be so helpful for a child with Arfid so I wouldn’t want to wrongly advise. My son has never been fussy about brands and type of treat type thing so I recognise we might be dealing with different situations.
Its taken a huge amount of time but I’m now at a point where I’ve got a decent number of meals he will eat with a few minor adaptations and he will happily eat homeade treats and things like sausage rolls with grated carrot in so I’m getting a small amount of veg in now as well.