Submarina California Subs Santee on Mission Gorge Road bakes its bread in-house at the 9713 block, producing the Dutch Crunch and sourdough rolls that distinguish this San Diego-born chain from national competitors. The build-your-own format layers fresh-sliced deli meats across six bread varieties, sourcing California produce from the same Mission Gorge supply corridor that feeds Sprouts Farmers Market two blocks east. Signature subs include the prosciutto-capicolla-salami Italian stack and a solid white albacore tuna salad on Havarti, both cut to 9-inch and 12-inch lengths that routinely exceed the volume of national-chain footlongs. The high-protein sub construction — grilled chicken breast layered with avocado and provolone on Dutch Crunch — fuels the lunch-rush traffic between the Mission Gorge corridor and Chuze Fitness at Santee Town Center. San Diego County health inspectors assigned this location a 99-out-of-100 score, the highest among sub-format restaurants on the Mission Gorge Road corridor.