i do eat a lot of pasta which comes to about £1.50 a meal but it only contains about 20 gr of protein so its not really a meal.
I was going to suggest a pasta meal at home for about that price, but you'd probably know the recipe anyway. When I'm in the UK and feeling tight-fisted, I pop along to Asda and buy some of their frozen stuff and cobble it together with some pasta for probably a quid a throw. But, I might be eating smaller portions than someone who is in training.
I agree on the pizzas, of course.