At my wits end with toddlers diet

[ReturnofSaturn]

My 15 month old son is a ridiculously fussy eater. It's actually getting ridiculous what he will actually eat.

For lunch today I made him a sandwich. Hummus with some chicken. (Not that it actually matters what was in it as as soon as it was put down in front of him he started crying without even having touched it)

He has now been screaming his head off for 30mins straight about lunch as I haven't made him anything else.
I feel awful, but it's got to the point where it's absolutely ridiculous and I need to draw the line somewhere.

He also won't eat any fruit or vegetables whatsoever. He will only eat banana if I blend it up and feed it to him like a pudding.

What he will eat:
Sausage roll
Toast
Cheese/meat pasty
Pizza/chips/potato waffle etc
Lasagne
Yoghurts
Biscuits

Help!? He's my only child and I'm exhausted with his now!

The challenge I have is that DS is allergic to dairy, egg and soya and I'm gluten and dairy intolerant. I'm veggie and DH is a massive meat eater so we don't eat the same things much. I might try making DS' tea something we can both eat so I can have some with him.

Reassuring to hear so many grow out of it.

I feel so guilty about the wasted food, especially after the recent campaigns about how much food we throw away.

Use a patty pan, bun tin, thing you bake cupcakes in, instead of buying a plate with compartments.