Most people who make purchases with their SNAP / food stamps EBT cards do so at grocery stores, but EBT cards are accepted other places as well. Drug stores, farmer’s markets, convenience stores like 7-Eleven.
Yep, they will take your EBT card at 7-11.
That said, remember that you can only use your EBT card for food that you buy to be eaten at home. You can not use it for other non-food items that a 7-Eleven may sell.
Food retailers are not forced to accept EBT, so it is smart to check. But at 7-11, you’re good.