I absolutely despise canned vegetables. I'll give canned tomatoes & beans a pass, but everything else must go.
OP said they "give a pass to" two veggies and despise all others. So I read it as they were making an exception to their "no canned veggies" rule.
I favour San Marzano tomatoes for cooking. If they're not in a tin, and whole, they're not allowed to be sold as "DOP".
You can get San Marzano seeds and grow your own; no doubt they're very good. You can buy fresh San Marzano at a greengrocer; they're probably fine too. But San Marzano DOP are picked and tinned only in the foothills of Vesuvius.
You also can't get tinned chopped San Marzano DOP; they have to be whole. To be fair, chopping up a tin of San Marzano results in a soupy pulp, which is fine if you're making a sauce or soup, which is what they're best for. Tinned chopped tomatoes tend to be chopped whole - you get the cores as well as the pulp. I take out the cores when I chop them. I've always been picky with tomatoes.
I've never heard of tinned lettuce.
I can see myself getting in trouble for not eating it too. Dull gray, wet but with a fluid that can't really be called either water or grease, somehow soggy and yet wilted at the same time. Smelling of year old unwashed gym socks but with a flavor best described as mealworm extract concentrate.
Actually now that I think about it, I'm surprised it's not a thing.