Jack in the Box on Pacific Highway in downtown San Diego belongs to the chain that introduced the first drive-through intercom system from its original 1951 San Diego location. The crispy chicken sandwich uses a seasoned breast fillet with pickles and mayo, a poultry-forward formula the chain refined independently of the buttermilk-brined approach at The Crack Shack - Little Italy up the highway. Munchie Meals bundle a burger or chicken sandwich with halfsie fries, two tacos, and a drink into a single late-night box for the after-hours harbor crowd. The full breakfast menu — scrambled-egg croissant sandwiches, jumbo platters with hash browns, and a loaded burrito — covers the same morning scope as Waterfront Bar & Grill down the highway but routes it through a two-lane drive-through. The Buttery Jack double stacks two quarter-pound beef patties on garlic-herb butter-toasted buns, topping out the chain's build-your-own customization tier.