M.M.
Both of my kids gave us napping before their little bodies were ready. As you know, you can't make them sleep.
Quiet time also never really did much for my kids.
I still have the "no nap monster" on occasion. But my tactic when it kicked in was to get them out of the house and distracted as much as possible.
Something as simple as going to the store was enough to shift the routine and kick them out of that mode. Playing outside, recycled toy (and old one they haven't seen in awhile), etc...
Something that causes a distraction.