Visitors to Spring Lake Regional Park in Santa Rosa this summer are set to experience some changes — of the culinary kind.

A restaurateur with a growing network of downtown eateries is taking over the park's summertime concession stand with plans to add smoothies, salads and a variety of burgers to the standard hot dog and ice cream fare.

For adult patrons, the makeover will include draft beer and glasses of wine served in an area overlooking the nearby swimming lagoon.

And that may only be the start of a food service overhaul for the county park, which joins two others — Howarth Park, overseen by the city of Santa Rosa, and Annadel State Park — on the city's eastern outskirts.

As part of a deal approved Tuesday by the Board of Supervisors, Sonoma County parks officials also agreed to work with Nino Rabbaa, owner of Rendez Vous Bistro and the new Flipside burger cafe in Santa Rosa, on opening a seasonal restaurant on the northeast shore of Spring Lake as soon as next summer.

Those plans are in the earliest stages of discussion and would be subject to public input and environmental review.

They are part of a broader strategy to boost visitation to Spring Lake — now at about 600,000 people a year — and funding for parks.

Regional Parks Director Caryl Hart called the concession deal the "first step" in transforming the public lands complex including Spring Lake into a "world class park."

"It's been static for years and years," Hart said.

She and other parks officials said diminished budgets have fueled the need for more partnerships with business. They downplayed concerns about commercialization of public lands, an issue likely to be raised by critics when the restaurant plans resurface.

"Parks these days are responding to that (funding shortage) by finding a balance that works for the public," said Bert Whitaker, the county's parks manager.

Rabbaa offered similar assurances. "We're not taking over a park to create value for us," he said. "We want to provide something that will bring pride and quality to this park."

Food service at the snack bar is set to begin in early-to-mid June, with beer and wine sales coming several months later, pending state approval.

Supervisors voiced some concerns about plans to serve beer and wine. Visitors are allowed to bring their own beverages to the county park, but sale of alcoholic drinks is unprecedented.

Customers would be served in an enclosed area near the snack bar, officials said.

Rabbaa said his staff would be careful catering to drinkers.

"We want to create a memorable experience, not get people drunk," he said. "We have a history of running a clean business."

Supervisors agreed to revisit the issue next summer to address problems or change their decision.

Rental of paddleboats and kayaks will continue with the new operation. Rabbaa said he hopes that business to start this Memorial Day weekend, if not soon after.

The four-year deal guarantees the county the higher of either 10 percent of gross sales from the snack bar and boat rentals or a guaranteed annual payment starting at $10,000 in the upcoming 2012-2013 fiscal year and rising to $25,000 by 2016. An option could extend the deal another two years.

The revenue agreement would be revisited if the proposed restaurant becomes a reality.

The decades-old concession has brought in about $15,000 to $20,000 annually to the county in recent years. It had been run by Stephanie and Orville Hubbard since 2003. Their operation ended after Orville Hubbard's death in November.

The change in operators coincides with a new mandate from county officials to provide healthy food at the lakeside stand. Legions of passing joggers, cyclists, dog walkers, swimmers and stroller pushers could prove the ideal clientele, officials said.

The approach suits Rabbaa, who said he was committed to providing healthy food as well as guilt-inducing summer standards at a range of prices.

The deal comes at a time of expansion for both county parks and Rabbaa. The county is set to take over management of 5,000-acre Annadel State Park as part of a bid to stave off its closure in the state budget crunch. That move is set to be formally approved by county supervisors June 12.

Rabbaa, meanwhile, said he has his sights on becoming one of the largest restaurant proprietors in Santa Rosa. He opened Rendez Vous Bistro off Fourth Street three years ago. Flipside, his new burger cafe, opened on Third Street this month. And his newest venture, a wine, cheese, dessert and cocktails hangout called X Clusiv is set to take over at 25 Old Courthouse Square, formerly occupied by the Space XXV Cafe and Lounge.

And still another restaurant could be on horizon, he said.

The businesses remain his own and do not involve outside investors, he said.

"I want to make Santa Rosa a destination like Napa, like Yountville," he said. "My goal is to partner with this community."