The Red Onion is a renowned burger restaurant in Concord, California, offering delicious burgers, fries, and milkshakes in a casual setting. We are located at 123 Main St, Concord, CA.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how The Red Onion broke down on May 1, 2026.
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