Bottomless mimosas in San Diego are easy to find on paper — but finding a spot that nails the food, the atmosphere, and the pour is a shorter list. Union Kitchen & Tap at 333 Fifth Ave in the Gaslamp Quarter does exactly that, serving unlimited mimosas every Sunday during weekend brunch alongside a menu that earns its own attention. Whether you’re a San Diego local looking for a reliable Sunday ritual or a visitor who wants to experience downtown brunch done right, this is your spot.
Why August Is the Best Time for Brunch in San Diego
August in San Diego is as good as it gets — warm, sunny, and finally free of the June marine layer locals call “June Gloom.” By late summer the Gaslamp Quarter is at full throttle, with outdoor patios packed and Fifth Avenue buzzing on weekend mornings. Heading into Labor Day, the energy only picks up, with visitors and locals alike squeezing every last drop out of the season before fall sets in.
San Diego welcomed 32 million visitors in fiscal year 2024, generating a record $14.6 billion in direct spending, according to the San Diego Tourism Authority. A city drawing that kind of crowd — and ranked No. 2 Best Big City in the U.S. by Condé Nast Traveler two years running — has the restaurant scene to match. Brunch mimosas downtown San Diego belong to that same story.
What Makes Unlimited Mimosas in the Gaslamp Different
Not all bottomless mimosa deals are worth your Sunday. Some places water down the juice, run dry by noon, or charge extra for anything worth eating. Union Kitchen & Tap runs its unlimited mimosas Gaslamp program as an actual deal — add-on bottomless mimosas to your brunch order and sip at your own pace with no awkward timers or hard stops. The drinks menu backs it up with a full cocktail program, and the patio on Fifth Avenue gives you San Diego sunshine and street-level energy to go with it.
Sparkling wine’s share of the total U.S. wine market grew from 5.4% in 2013 to 7.4% in 2022, and monthly sparkling wine drinkers rose from 56% to 72% between 2019 and 2022, according to research tracked by Park Street Imports. Bottomless brunch is a major reason for that growth — and Union Kitchen is right at the center of it every Sunday.
The Brunch Menu: What to Order
The brunch menu at Union Kitchen & Tap is the kind of lineup that holds its own whether you arrive starving or just want something solid to pace the morning. You’ll find brunch staples done with gastropub sensibility — egg dishes, hearty mains, and shareable plates that pair well with a glass of something sparkling. The kitchen doesn’t treat the food as an afterthought to the drinks deal, which is rarer than it should be.
The full menu is always available online if you want to plan ahead. And if Sunday stretches past the brunch window, the lunch menu picks up right where brunch leaves off.
Planning a Group Brunch for Labor Day Weekend
Labor Day weekend is one of the busiest brunch weekends downtown. If you’re coming with a crew — birthday group, out-of-town friends, a late-summer send-off — book ahead. Union Kitchen handles group dining well, and for larger parties or special occasions, the private events team can set something up that fits your headcount and pace. The restaurant sits steps from Gaslamp hotels and the convention center, making it a natural anchor for a full day out.
Check the events calendar before your visit — Union Kitchen regularly adds weekend programming and seasonal specials worth knowing about.
Beyond Brunch: Happy Hour and Dinner on Fifth Avenue
San Diego Sundays don’t have to end at brunch. Union Kitchen & Tap runs a solid happy hour with drink and food specials that keep the afternoon going without the morning price tag. The dinner menu gives you a reason to stay on Fifth Avenue instead of hunting for a second spot. For a deeper look at the Gaslamp’s drink scene, the Happy Hour in the Gaslamp Quarter guide on the Union Kitchen blog covers the full picture of where to drink in downtown San Diego.
What Regulars Know About Sunday Brunch Here
There’s a version of San Diego brunch that’s mostly about the deal — cheap drinks, forgettable food, a table you didn’t really want. And then there’s the version regulars at Union Kitchen & Tap know: a Sunday morning that actually feels good, with food worth eating and a patio that makes you feel like you’re in the right city. The Brunch at Union Gaslamp blog post captures the experience well, and the Sunday Bottomless Mimosas at Union Gaslamp post goes deeper on what the deal actually includes. Sunday brunch San Diego diners keep coming back for isn’t just about price — it’s about the whole package consistently delivering.
How to Get Here and When to Arrive
- Address: 333 Fifth Ave, San Diego, CA 92101 — heart of the Gaslamp Quarter
- Phone: (619) 795-9463
- Parking: Several paid lots within a block; rideshare drop-off is easy on Fifth Ave
- When to arrive: Early is better on holiday weekends — the patio fills up by mid-morning
- Reservations: Strongly recommended for groups of 4+, especially Labor Day weekend
Frequently Asked Questions
How does the bottomless mimosa deal work at Union Kitchen & Tap?
Unlimited mimosas are an add-on available during Sunday brunch. Order your food from the brunch menu, add bottomless mimosas for the table, and your server keeps the glasses filled. Check the current menu or call (619) 795-9463 for the latest pricing and service window.
Do I need a reservation for Sunday brunch in the Gaslamp?
On peak weekends — Labor Day, summer Sundays, any weekend with a major event downtown — reservations are a smart call. Walk-ins happen, but patio seats go first. Use the online reservations page to lock in your time before the weekend arrives.
Is this a good spot for group brunch mimosas?
Yes — the layout handles parties from a couple to a dozen or more, and the bottomless mimosa format is built for group pacing. Large parties can contact the private events team to sort seating in advance.
Where can I find current brunch specials?
Check the happenings page or Union Kitchen’s social channels for seasonal updates on brunch specials San Diego diners keep returning for.
Ready for Bottomless Mimosas in the Gaslamp?
Union Kitchen & Tap serves bottomless mimosas every Sunday in downtown San Diego. Lock in your table before it fills up.
Reserve Your Table or call us at (619) 795-9463.
Sources
- San Diego Tourism Authority. San Diego Tourism Authority Touts 32 Million Visitors, Total Economic Impact of $22 Billion in Fiscal Year 2024. sandiego.org. https://www.sandiego.org/press-release/
- Park Street Imports. An Overview of the U.S. Sparkling Wine Market in 2023. parkstreet.com. https://www.parkstreet.com/an-overview-of-the-u-s-sparkling-wine-market-in-2023/
