Any better alternative brands or outright alternatives to french fries? UK

I eat a lot of fries and I’m new to the whole 1.2k diet thing. I tend to eat like a lot like 400g of french fries and with this brand from aldi it goes up to 1024 kcal – which is insane. Wondering if these are quite high for french fries as I saw someone say they found fries for like 150 cal per 100g ( and these are 256 per 100g).

I’m open to trying alternatives like sweet potato but I do love myself some cheesy fries so if there a better potato brand, i’ll take it.