Yikes! Sunday is Mother's Day and aside from a card, you want to show mom you really care. It is the MOST popular restaurant night. How about a few other ideas?
Flowers (never a bad move) See if there's a few chores you can help with Gift cards for stuff like groceries or gas Things she uses for a special hobby Time - yup, spending time with mom is the greatest gift of all. She'll agree to that.