I will go out on a limb here and guess those were not ravioli and some form of pelmeni instead? There are types of them that are usually eaten with sour cream and jam. But the dough used is quite different from the ravioli one, and the filling is cheese (not meat or ricotta/spinach).
Was that the case?
So, not carbonara. Pasta with lemon is awesome, I also love pasta with tuna, both also work together, but it’s not a carbonara.