Our #1 Sandwich: Italian Beef

If you’ve ever been to O’so and didn’t see a pizza coming out of the kitchen… it was probably our Italian Beef Sandwich. Month after month, it outsells our other two sandwiches combined—and for good reason.

So, what’s the secret behind its legendary status?

We handcraft it from scratch, and unlike some regional takes, our version proudly pays homage to our Kenosha roots, where Italian-American food is more than tradition—it's culture.

🥩 Made with Love (and a Lot of Flavor)

Each batch starts with locally sourced chuck roll, generously rubbed with our own house seasoning blend. Then, we slow cook it with copious amounts of pepperoncini and giardiniera for over 12 hours, locking in layers of flavor.

After the roast is done, everything goes into our massive house mixer—where the magic happens. The au jus is fully blended into the meat, resulting in what we call wet beef. You won’t get a cup of jus on the side—it’s already infused right into every bite.

We then chill it overnight to firm it up before it’s ready to serve.

🥖 The Sandwich That Sells Itself

Our Italian Beef is built on a soft, flaky Italian loaf from Chicago that crisps beautifully in the oven. We load it with:

• 6 oz of our house-made Italian beef

• Locally sourced cheese

• Pepperoncini

• Served with giardiniera and a side of plain Vitner’s chips

Every bite is juicy, spicy, comforting—and undeniably O’so.

Whether you’re a regular or visiting for the first time, our #1 sandwich is one you don’t want to miss.

Try it next time you’re in—and taste why it’s earned the top spot.