We've always found the table included with our SMB to be kind of a pain in the ass to use. The table top is stored under the bench seat and hard to maneuver in and out of its storage location. The legs only fit under the rear bed platform and are thus only accessible with the back open. Therefore I think I can count on one hand the number of times we have used it, mostly just eating one our laps. I was at REI getting a new pair of hiking shoes and ran into a sweat table from CGI Outdoor. I ended up purchasing two of their Compact Camp Table 20 models. https://www.gcioutdoor.com/outdoor/compact-camp-table-20/
The table top measures about 20 inch by 18 inch. They also have a version with a 25x25 inch table top.
I have subsequently found it for sale at Amazon for less than at REI. The nice thing about this table is that there are no loose parts like a roll table. It only weighs in at 4 lbs. We are able to store both of our tables in the overhead storage of our Cruiser top over the drivers area. It takes seconds to erect it and the same to collapse it.