Consider “always open” or pop-up micro-markets or touchless vending machines with a variety of take-away items and staples to help  mitigate dining room capacity challenges and enable staff to grab groceries on their way home from late shifts.
Consider pre-packaged meals from third-parties to reduce effort of pre-packaging in-house.
Provide wrapped, disposable cutlery, and consider reheat locations with safely spaced microwaves, sanitation wipes, hand sanitizer, etc.
Rigorously limit access and capacity to maintain social distancing at all times. Leverage floor graphics and wayfinding signage reinforcing 1-  way traffic flow and 6’ distances.
Shoppers will occasionally forget something and need to “loop” back. Provide “off-ramps” that allow them to safely return to an earlier  aisle, decreasing frustration & saving trip time.
Place automatic hand sanitizer dispensers throughout the space, and sanitary wipe dispensers and trash cans near common items, such  as chill cases with handles.
Route traffic so that “last aisle” also serves as payment queue while waiting to check out.
Leverage technology to provide contactless payment. Ensure social distancing is enforced at point of sale, and barriers are provided to  minimize contact between diners and cashiers.
Consider bundled food kits containing breakfast, lunch, and dinner options to minimize repeat visits to dining facilities.