This one is in the strip mall just east of the St Louis Park Costco, across the parking lot. They're open to 9pm every day. Always good, friendly, quick service (in/out less than 10min), and a nice selection of sandwiches-- including veggie and gluten free options-- with almost all the condiments you'd want. I think they only do sub sandwich bread, but have a selection of those too. Can't go wrong!
((I chose them over Jimmy John's since the 2 JJs nearby seem to set their hours based on the day))