Upper East Side restaurant Caravaggio was closed for two days early this week when gas had to be shut off at its building at 23 E. 74th St.

That sent the elegant Italian haunt’s usual swells scattering — but they returned in full force on Wednesday.

At one table, mogul John Catsimatidis and his wife Margo dined with Andrew Stein and Washington Post scion Lally Weymouth.

In a private room, New York State Attorney General Eric Schneiderman rubbed elbows with Patricia Duff, Richard Cohen and others.