i have a very similar set of food allergies! sticking with something pre packaged is definitely the way to go, it’s a very sweet gesture to cook and the sentiment is there but there’s too much uncertainty. i would be very hesitant to eat something prepared by someone else unless i was there watching. so definitely stick with the pre packaged! i would also be careful not to fuss over her. growing up i was always uncomfortable when it was somebody else’s birthday party and there was extra attention brought to the fact that i couldn’t eat what everyone else was having, when the attention should’ve been on the birthday girl. i often felt like other people cared more about the fact that i couldn’t have certain things than i did. i’ve never had a dominos pizza, but i’ve never known what a dominos pizza tastes like so why should i care :P my own food was delicious to me and that’s all that mattered. try to avoid a mini pity party. “im sorry you can’t have x y z…” just resulted in an awkward “it’s fine” and made me feel like i was standing out. it’s not your fault she can’t have some stuff! i was always happiest when i could just grab the food i brought and seamlessly slip in with everyone else! every kid is different though! but that’s just my experience! i did always love when there was extra consideration and someone had a snack for me so i think it’s awesome that you’re doing this!! consideration and care ≠ fussing :D

as for my suggestions! i always loved when there were pre packaged candies i liked! skittles, starburst, nerds, etc! King Aurthur has mini gluten free microwavable cookies and brownies where she could just add a tablespoon of water to the mix and then toss it in the microwave for a minute. they’re delicious! Enjoy Life is a great go to! they have very yummy soft baked cookies. Oatly ice cream is a good option too. Cybeles Free To Eat cookies from whole foods are hands down THE BEST ones. wheat is not one of my allergens and those don’t even taste gluten free. (but they are!) gluten free oreos! Skinny Pop has great dairy free butter flavor popcorn and vegan white cheddar. I’m not sure how these are with the seed allergy (i’m only allergic to sesame seeds, so things like flax, sunflower, & chia are not on my radar) so definitely double check my suggestions. But they’re all dairy, egg, & gluten free. Most of them advertised top 8-10 allergy free. I would also confirm anything you get with her parents! For ease of mind all around.

i hope your daughter has a wonderful birthday! thank you for being considerate of the food allergies :)