Milan and Venice Dinner recommendations needed

We have one night in Milan and one night in Venice (Sunday).
At first I booked Ratana in Milan which we loved in 2017 and Vini da Giglio in Venice (not tried) but after reading here and on TripAdvisor (whatever that’s worth) I am having second thoughts. The wine list at Vini da Giglio looks very nice.
Our favorite in Venice -L’Osteria di Santa Marina and Ai Mercanti are unfortunately closed on Sunday.
Other past favorite Il Ridotto is a tasting menu and we would rather avoid that. Been to Al Covo twice and did not like it twice.
Any suggestions in Venice and Milan that are worth exploring?

On our trip last year we liked Ratana perhaps most from the four restaurants we tried in Milan - might still be worth a visit for you

We were just in Venice - see my recent writeup. In addition to Ai Mercanti, we loved Ai Assassini, but it too is closed on Sunday. Our favorite Cicchetti was Cantina Aziende Agricole, which looks to be open on Sundays and serves a full menu. See vinouspleasure’s recent writeup on his meal there - which we found to be an excellent guide.