I find the "hungries" frequently interfere with my plans. Your sandwich is surely resonating with me but the tomato soup not so much. I understand that it's an accepted pairing but I was raised in the wrong country, I think, to appreciate that.
edited to add
I just linked to the original recipe and I have to say it would not have caught my attention at all. Toasties I understand and enjoy but closed grilled cheese sandwiches -- no. I have all the makings at the moment so it may appear on my table in the not-too-distant future as a toastie.