Melissa R.
8/25/2025
The burger was actually so good! It was one of the best burgers we've had in a VERY long time. The only two thing that I would complain about is that the fries needed more salt and it's pretty...
Cosmos Burger
$$
Closed
(341)
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208 N Coast Hwy
Oceanside, CA 92054
Discover Cosmos Burgers, Oceanside's premier gourmet burger destination! Our menu features fresh, premium beef classics like the Cosmos Classic, Apollo Avocado, and Saturn BBQ Burger. Vegetarians love our Planet Plant-Based options and Stellar Salads. Try our signature hand-spun milkshakes in flavors from vanilla to cosmic cookie, or enjoy local craft beers. We offer fresh-cut Asteroid Fries, crispy Onion Rings, and kid-friendly Cadet Meals. Enjoy our welcoming indoor space or sunny patio—perfect for families and friends. Order online for quick pickup or local delivery. Catering available for events! Located in the heart of Oceanside, we use quality ingredients for an out-of-this-world burger experience. Your burger universe awaits! ✨
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Reviews
4.5341 reviews
Gregg P.
7/31/2025
I heard good things so had to try Cosmos tonight. My bride got the Truffle Burger and I got the Cosmos Burger. We split a Chicks Fries. The draft beer was served up properly in a cold glass....
Lilian W.
9/1/2025
Cosmos Burger is a restaurant located in the downtown Oceanside area. There's street parking nearby. It is walkable to the beach and pier. The burgers and fries were pretty good- it's not the...
A. P.
4/25/2025
Fantastic ! We love to try burgers all over the world. How great to find an excellent burger joint right in our backyard of O'side. Service is very good, attentive. (order at counter, they bring...
Shonci H.
9/1/2025
We ate at Cosmo's Burger as a family. We ordered the Basic Burger, Truffle Burger, Bleu Cheese Burger, and the truffle fries. The service was great! And everything was delicious! Our daughter got...
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