The Incompatible Food Triad
georgehart.com
georgehart.com
I also got a genuine chuckle at the suggestion of a shot of tequila + a shot of tequila + a shot of tequila.
Also, the espresso + milk + lemon is a near miss... but not for his reasoning. Ricotta cheese is lemon+milk; espresso flavored ricotta sounds like a decent cannoli stuffing.
The only person I have ever seen drinking espresso with lemon was my grandfather, who did that when he had some sort stomach problem (his theory was that this would help him get better).
So it was something more like a hangover remedy, but not a real "recipe". And in any case, I never saw anyone else doing it - neither in my family or among any other person I know.
I wanted to be sure, so I just googled before writing this (it would be "caffè e limone" in Italian): it is always described only as a cure for headache.
Ricotta and coffee could work, but it is a bit of a stretch saying that "ricotta=milk+lemon"... you can make something (called "Cagliata") close to ricotta at home with milk and lemon, but real ricotta is prepared in a different way.
See https://ricette.giallozafferano.it/Ricotta-fatta-in-casa.htm...
As for the coffee. Moretta fanese is perhaps the closest traditional Italian beverage, containing lemon and coffee. Amusingly, somebody's popularized the name "Cafè Romano" for lemon zest in coffee... but, at best, it's as Italian as alfredo sauce. In Algeria, there's a drink known as a Mazagran, which appears to be an invention by or for the French Legion. So, while this combination is not from the homeland, there are plenty of folks drinking coffee with lemon.
Personally, I love citrus in black coffee. My personal favorite is peel of mandarin orange in espresso; second favorite is a sour (light roast) cold brew 3:1 with lime juice.
As for tradition: do you eat risotto, gnocchi, tomatoes, zucchini, peperoncini, or fichi d'India?