Smash Sonoma Opening – New Smashburger Spot on Sonoma Plaza

SONOMA, CALIFORNIA — A new fast-casual burger concept is slated to shake up Sonoma’s eating scene in May, when two well-known Wine Country restaurateurs bring their latest endeavour to Sonoma Plaza.

Chef Ari Weiswasser and managing partner Spencer Waite — the duo behind Glen Ellen Star and Stella — are opening Smash, a smashburger-focused restaurant that aims to blend high-quality local ingredients with a more approachable, everyday dining experience.

What’s New

Smash will take over a historic building at 497 1st Street West, right near Sonoma Plaza’s central park — a location that gives it a major edge from day one. The building itself dates back to the early 1900s and has previously held a coffee shop, market, and wine tasting area.

This introduction is particularly noteworthy because it is so different from the team’s previous concepts. Glen Ellen Star and Stella are known for sit-down dining and elevated menus, but Smash flips that approach entirely. This time around, the emphasis is on fast-casual service, short eats, and accessibility.

Weiswasser described the concept as something between Gott’s Roadside and Shake Shack — but with a strong local twist. That “hyperlocal” approach is evident not only in the ingredients, but also in how the restaurant integrates with Sonoma’s culture. With the Plaza park just steps away — one of the few places in California where open container alcohol is allowed during certain hours — customers can grab food and drinks and enjoy them outdoors.

It’s a simple idea, but in a place like Sonoma, it fills a noticeable gap.

Menu & Experience (with POV)

At its core, Smash is all about thin, crispy smashburgers — a style that has quietly taken over much of the Bay Area over the past few years. These burgers are notable for their caramelized edges, rapid cooking time, and lower cost when compared to standard thick patties.

However, what strikes out here is how much effort is put into even the smallest details.

Weiswasser is still refining the burger itself, experimenting with custom beef blends to create something unique rather than just following the trend. The bun is also being meticulously designed, with choices such as Japanese milk bread, potato rolls, bao, and brioche all being examined before a final decision is made.

Ingredients will lean heavily on local sourcing. Produce such as lettuce and tomatoes will be sourced from surrounding farms, including one owned by the Weiswasser family. The buns will be supplied by Napa Baking Company — a name that already carries weight in the region.

Beyond burgers, the menu expands into comfort food territory with:

• Nashville hot-style fried chicken sandwiches
• Falafel smashburgers for plant-based diners
• Fries and tater tots
• Fresh salads

And then there’s the drink program — which honestly feels like a major part of the experience. Boozy milkshakes in Strawberry Glaze and Chocolate Brownie varieties are predicted to be popular, as will drinks on tap such as Palomas and Greyhounds, as well as frosé.

From my perspective, this is where Smash really shines. Sonoma has no shortage of high-end dining, but casual spots where you can grab something quick, affordable, and still well-made are surprisingly limited. This is ideal for both locals and tourists who do not always desire a full sit-down experience.

Community Buzz

This debut is already generating a lot of buzz, and it’s not hard to see why.

For one, smashburgers have become one of the most popular food trends in the Bay Area, largely driven by rising costs. They use less meat, cook faster, and may be served for a reduced price, which benefits both restaurants and customers.

Waite has made it clear that affordability is a key part of the concept. Basic burgers are projected to cost between $9 and $10, making Smash one of the more affordable dining alternatives in Sonoma.

That pricing alone is likely to attract consistent foot traffic, especially in a location that sees both heavy tourism and local activity.

There’s also excitement around the building itself. The second story has a speakeasy called the Beacon, and the team will take over its operations as well, serving the entire Smash menu upstairs. That adds an extra layer to the experience, giving diners both casual and slightly more upscale options in the same space.

Based on what I’ve observed, this isn’t just another fashionable burger joint launching and looking for attention. It’s a calculated move by operators who understand the area and know exactly what’s missing.

Final Thoughts

Smash isn’t attempting to compete with Sonoma’s fine dining scene, which is precisely why it works.

It’s built for everyday dining, quick meals, and relaxed hangouts, all while still maintaining the quality standards people expect from this team. The location, pricing, and concept all come together in a way that feels deliberate rather than experimental.

In a place known for wine and upscale restaurants, Smash could easily become one of the most popular casual spots on the Plaza.

If you’re visiting Sonoma this spring, this is one opportunity to take advantage of before the crowds arrive.

Stay tuned with CityScoopNow for more Fresh Finds across the U.S. — and let us know: would you try a smashburger spot like this in your city?