Fussy eating - 9yr old

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Help!
My DS is 9 and getting increasingly fussy in his eating. I'm becoming worried that he's not getting a full balanced diet and eating too much processed meat. I also am desperate to expand his eating habits for his own health and also to fit in better with the rest of the family.

An idea of the types of things he will eat is below. Is there anything I can do? I have tried having a variety of things on the table, getting him to cook and also bribing him to eat a tiny amount of something (e.g. just asked him to eat half a cherry tomato and get over the top horror faces and he tells me he feels sick). What do I do next??

Veg wise he will eat: raw red pepper, cucumber and cooked carrots. Nothing else.
He will eat ham and any number of other processed meats (sausages, bacon, chorizo). He will actually eat most other meats but would always choose something processed like the above where he can.
He doesn't eat fish, cheese, yoghurt, eggs. The only nuts he will eat are peanuts.
He's much better with fruit.
He won't eat pulses such as lentils, beans. He will eat regular potatoes but not sweet potatoes or butternut squash.
He will eat pasta and rice.
He would eat his own body weight in sugary snacks and crisps if he were allowed.

Thank you kind mumsnetters!

For a start I would say he’s not that bad. He eats foods from all of the major food groups, it’s just not a huge variety.
Do you plate his meals or allow him to serve himself from bowls on the table? It sometimes helps, you just set guidelines for example, you need to have three different things on your plate or you must have something from each food group.
What happens if you make a dish that has a mix of ingredients he does and doesn’t like? Will he pick out the bits he likes or does he refuse any of it?
Will he eat eggs in things?
What about things with pulses in them like falafel, hummus or bean burgers? Or is that a no?
If he eats decent meat but prefers processed I’d just cut right back on the amount of processed meat you buy.

Thanks for replying.
I've mainly plated things up - perhaps I should try more having things out for him to help himself to (although I think portion control could be a bit of an issue for the stuff he likes).
It's really reassuring to hear you think it's not too bad.
It's the veggies that I find the most annoying as I think he should be eating far more. I can and do hide veg by blending it up into sauces etc but I worry he'll be an adult before I know it who only eats cucumber, pepper and carrots!
He won't point blank refuse a meal if it had things he doesn't like in it but will pick out every single bit of things he doesn't like.
I hadn't worried too much until recently as I thought he'd grow out of it but his refusal to try things he doesn't like is just getting even more stubborn.

I get the impression it’s turning into a battle of wills. I know it’s so much easier said than done but try not to. The reason I asked about dishes with both likes and dislikes in, is I’ve had real success with this. Just keep presenting the same dish, gradually increasing disliked ingredients. Over time I found less was left, particularly when well distracted or he had the company of peers.

I have a dd same age who is very similar. I think she may be a ‘super taster’ actually as she likes really quite bland foods and always has. She has a very acite sense of taste. I’ll try any advice on here, too, and add in anything I can think of!

That's interesting about trying the same dish again and again.
I have always been quite chilled out about what he's eating but I think over the course of this year it has hit me that he's actually a bit older now and the worry has set in that the childhood faddiness might not go away. Maybe I do need to relax a bit! It's really good to get some outside perspective.