Test Kitchen in Grantville runs a made-from-scratch sandwich-and-soup lunch counter at 4651 Mission Gorge Pl, San Diego, CA 92120, inside an industrial office park off Mission Gorge Road. The space doubles as the recipe-testing and catering-prep kitchen for BBG Cal, the restaurant group behind Queenstown Public House in Little Italy, Dunedin in North Park, and Bare Back Grill in Pacific Beach — all New Zealand-inspired concepts that develop new dishes in this Grantville facility before rolling them out to their respective menus. The lunch counter serves a rotating shortlist of sandwiches, salads, and three homemade soups that change as the kitchen tests new recipes, and Citizen Brewers operates a craft brewery in the same Grantville corridor for after-work pints. Sandwich builds rotate roughly twice a month and have included a pineapple chicken breast with Swiss cheese and red pepper aioli, a meatball hoagie with house-made marinara and melted mozzarella on a buttered French roll, and The Nina, an albacore tuna sandwich with jalapeno mayo and sliced cucumbers on grilled white bread. The Cobb Chopt salad tops romaine with chicken breast, bacon, avocado, tomato, blue cheese, and egg under a pepper ranch dressing, and the veggie wrap rolls hummus, five-spice aioli, avocado, cucumber, tomato, carrots, and daikon in a flour tortilla. A San Diego County health inspection returned a perfect score of 100 out of 100. Mission Gorge Road funnels traffic between Mission San Diego de Alcala and Mission Trails Regional Park, and the office-park location catches weekday lunch trade from the insurance offices, warehouses, and light-industrial tenants that line the corridor. Bekker's Catering runs a parallel catering operation out of Grantville, and both kitchens serve the same east-of-the-15 corporate event market in the 92120 ZIP. The grilled cheese bites — a trio of mozzarella, cheddar, and tomato pressed between buttered bread and cut into fingers — run as the most-ordered starter and double as a soup dipper alongside the rotating selection.