Belli Osteria is a cozy little Italian restaurant in Brooklyn serving homemade cuisine made with simple, quality ingredients. Belli Osteria is a cozy little Italian restaurant in Brooklyn serving homemade cuisine made with simple, quality ingredients. We believe that when quality food meets seasoned hands, even the simplest ingredients can become something spectacular. That’s our goal at Belli Osteria - to turn fresh, honest ingredients into delicious homemade cuisine. From familiar favorites such as Polenta and Rigatone Bolognese to unique items such as Lasagna Verde and Spaghetti Al Nero, we stay true to the flavors of each ingredient.