Goals from Diego Milito, Rodrigo Palacio and Fredy Guarin were enough to cancel out strikes from Eder and Gianni Munari, and Stramaccioni believes that his side are continuously improving.
"The best quality that emerged tonight is that we are growing," said Stramaccioni.
"This evening I saw hunger and we never relaxed. We need to continue to work this hard in every game."
The win took Inter up to second in Serie A ahead of their clash with league leaders Juventus at the weekend.