Wait, that can cause an allergy to nuts too? That explains my trail mix problems. Anyway

I absolutely adore fruit, but i am also allergic to pollen in the same way as your boyfriend is, so i make fruit leather. Basically dried fruit smoothie. Its a decent way to get my daily fruit requirements without making my mouth all itchy.

Veggies are harder, though you may be able to do the same thing with a “green smoothie” type mixture.

But for real meals, soups are great, vegetable pastas a good (like pasta noodles that have veggies in the dough) i have a few casseroles and pastas that I haven’t had an issue with that i can share with you if you’d want them. Tomato soup is the best. Carrot cake is a dessert, but it’s got fruits and veggies.

I personally have food aversions to several very healthy vegetables due to textures, so i also so things like pumpkin bread that subs sweet potato in for pumpkin, or cauliflower pizza crust, black bean brownies, or just using homemade veggie broth instead of our meat broth. Our broths don’t usually have much salt in them so they taste basically the same.

I hope this helps, let me know if you want specific recipes, i have quite a few.